Fix image URLs after nord-docs GitHub flow and main branch migration

The URLs to image assets were broken due the recent GitHub flow
migration [1] in the `nord-docs` repository as well as the switch from
the `master` to `main` branch [2].

[1]: nordtheme/web#229
[2]: nordtheme/web#236

Relates to nordtheme/web#229
Relates to nordtheme/web#236
GH-88

Author: svengreb

CHANGELOG.md

@@ -1,4 +1,4 @@
-<p align="center"><a href="https://www.nordtheme.com/ports/atom-ui" target="_blank"><img src="https://raw.githubusercontent.com/arcticicestudio/nord-docs/develop/assets/images/ports/atom-ui/repository-hero.svg?sanitize=true"/></a></p>
+<p align="center"><a href="https://www.nordtheme.com/ports/atom-ui" target="_blank"><img src="https://raw.githubusercontent.com/arcticicestudio/nord-docs/main/assets/images/ports/atom-ui/repository-hero.svg?sanitize=true"/></a></p>
 
 <p align="center"><a href="https://www.nordtheme.com/docs/ports/atom-ui" target="_blank"><img src="https://img.shields.io/github/release/arcticicestudio/nord-atom-ui.svg?style=flat-square&label=Docs&colorA=4c566a&colorB=88c0d0&logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%2CPHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgaGVpZ2h0PSIxNiI%2BCiAgICA8cGF0aCBmaWxsPSIjZDhkZWU5IiBkPSJNMTMuNzQ2IDIuODEzYS42Ny42NyAwIDAgMC0uNTU5LS4xMzNMOCAzLjg0OGwtNS4xODgtMS4xOGEuNjY5LjY2OSAwIDAgMC0uNTcuMTMzLjY3Ny42NzcgMCAwIDAtLjI0Mi41MzF2OC4xMzNjLS4wMDguMzIuMjEuNTk4LjUyLjY2OGw1LjMzMiAxLjE5OWguMjk2bDUuMzMyLTEuMmEuNjY4LjY2OCAwIDAgMCAuNTItLjY2N1YzLjMzMmEuNjU5LjY1OSAwIDAgMC0uMjU0LS41MnpNMy4zMzIgNC4xNjhsNCAuODk4djYuNzY2bC00LS44OTh6bTkuMzM2IDYuNzY2bC00IC44OThWNS4wNjZsNC0uODk4em0wIDAiLz4KPC9zdmc%2BCg%3D%3D"/></a></p>
 
@@ -52,27 +52,39 @@ Please see the [corresponding issue in the Nord Docs repository][nord-docs#166]
 ↠ Adapted to the MIT license migration of [Nord][]. Details can be found in the main task ticket [arcticicestudio/nord#55][nord#55].
 
 # 0.11.0
-*2017-04-01*
+
+_2017-04-01_
+
 ## Features
+
 ### Package Support
-❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/515636" width=16 height=16/>  [`indent-guide-improved`](https://atom.io/packages/indent-guide-improved) to adapt to the UI style. This matches the indent guide improvements implemented in [arcticicestudio/nord-atom-syntax #43](https://github.com/arcticicestudio/nord-atom-syntax/issues/43). (@arcticicestudio, #64, e185d481)
+
+❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/515636" width=16 height=16/> [`indent-guide-improved`](https://atom.io/packages/indent-guide-improved) to adapt to the UI style. This matches the indent guide improvements implemented in [arcticicestudio/nord-atom-syntax #43](https://github.com/arcticicestudio/nord-atom-syntax/issues/43). (@arcticicestudio, #64, e185d481)
 
 <p align="center"><img src="https://cloud.githubusercontent.com/assets/7836623/24577073/8a3486da-16c7-11e7-83a7-40cceaa7c87c.gif"/></p>
 
 ## Improvements
+
 ### Tabs
+
 ❯ The close icon of inactive tabs is now only colored bright on hover to match the stye of active tabs. (@arcticicestudio, #65, 3d86698b)
 
 <p align="center"><strong>Before</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/24576737/eff70b1a-16c1-11e7-8480-54dfbe775894.gif"/><br><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/24576880/01c644d0-16c4-11e7-8234-87ba9bb46b53.gif"/></p>
 
 ## Bug Fixes
+
 ### Documentation
+
 ❯ Fixed a typo in the project description. This is a sub-task of [arcticicestudio/nord #20](https://github.com/arcticicestudio/nord/issues/20). (@arcticicestudio, #60, 443531b9)
-  > **A** arctic ... -> **An** arctic ...
+
+> **A** arctic ... -> **An** arctic ...
 
 # 0.10.2
-*2017-03-06*
+
+_2017-03-06_
+
 ## Bug Fixes
+
 ❯ Fixed the overall height increase of the tab-bar when dragging tabs by disabling the placeholder bar. This also makes the drag & drop animation to be smoother and look more flat. (@maliMirkec, #56, 031da28b)
 
 <p align="center"><strong>Linux (<img src="https://wiki.archlinux.org/favicon.ico" width=16 height=16/> Arch Linux, <img src="https://www.gnome.org/wp-content/themes/gnome-grass/images/favicon.ico" width=16 height=16/> GNOME DE)</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/23586171/074a03c2-0190-11e7-9580-a1f817059429.gif"/><br><strong> <img src="https://developer.apple.com/favicon.ico" width=16 height=16/> macOS (Sierra)</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/23586192/83046b6a-0190-11e7-9d3e-3f007a507466.gif"/></p>
@@ -83,18 +95,23 @@ Please see the [corresponding issue in the Nord Docs repository][nord-docs#166]
 <p align="center"><strong>After with <code>file-icons</code> package</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/23630324/016f325c-02bb-11e7-8ad0-e295446f6eff.png"/><br><strong>After with <code>seti-icons</code> package</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/23630345/183d8a88-02bb-11e7-8214-516bc35fcb76.png"/></p>
 
 # 0.10.1
-*2017-01-25*
+
+_2017-01-25_
+
 ## Bug Fixes
+
 ❯ Fixed unreadable text color for of all focused floating modal overlays by adding the new `syntax--` class prefix introduced by the new Atom syntax theme package API change regarding the shadow DOM removal for Atom >= 1.13.0. (@abrthel, #53, 1598fabd)
 
 <p align="center"><strong>Before</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/22285966/ed31d25a-e2ed-11e6-9355-c53db4fec0d5.png"/><br><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/22285980/f4cfede4-e2ed-11e6-9906-fa732ca787de.png"/></p>
 
 # 0.10.0
-*2017-01-24*
+
+_2017-01-24_
 
 **Please note that the minimal version for this theme is now >=1.13.0 due to the Atom theme API change!**
 
 ## Improvements
+
 ❯ Migrated to the new Atom theme API.  
 Starting from Atom version 1.13, the contents of `atom-text-editor` [elements are no longer encapsulated within a shadow DOM boundary](http://blog.atom.io/2016/11/14/removing-shadow-dom-boundary-from-text-editor-elements.html).  
 This means the `:host` and `::shadow` pseudo-selectors should be completely removed and all syntax selectors should be prepended with `syntax--`.
@@ -103,8 +120,11 @@ To prevent breakage with existing style sheets, Atom will automatically upgrade
 ![](http://blog.atom.io/img/posts/shadow-dom.png)
 
 # 0.9.0
-*2016-12-01*
+
+_2016-12-01_
+
 ## Improvements
+
 ❯ Single tabs are now colored with the base background color to better match the theme ambience. (@arcticicestudio, #44, ee8a0c60)
 
 <p align="center"><strong>Before</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20312911/645613e4-ab55-11e6-8d53-2d38f70627b8.png"/></p>
@@ -116,14 +136,18 @@ To prevent breakage with existing style sheets, Atom will automatically upgrade
 <p align="center"><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20810543/66f4cca0-b80a-11e6-817b-c52b596584b6.png"/></p>
 
 ## Bug Fixes
+
 ❯ Selected folders in `tree-view` had a transparent background color unlike files which made it hard to navigate using the keyboard.
 This has been changed to colorize the background color of selected folders. (@marza91, #47, 6c2c13ea)
 
 <p align="center"><img src="https://cloud.githubusercontent.com/assets/7836623/20810298/89cd19ea-b809-11e6-9f5b-da198429df80.png"/><br><img src="https://cloud.githubusercontent.com/assets/7836623/20810306/8d402f72-b809-11e6-8609-2339974c20d7.gif"/></p>
 
 # 0.8.1
-*2016-11-23*
+
+_2016-11-23_
+
 ## Bug Fixes
+
 ❯ Fixed unreadable bold-formated text shown in the [`markdown-preview`](https://atom.io/packages/markdown-preview) tab.
 The text color was too bright and therefore was not be seen. (@ToxidoLiu, #45, 9f6ccf16)
 
@@ -139,99 +163,140 @@ The text color was equal the to the background color and was therefore not be se
 <p align="center"><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20575286/ef3f6640-b1b8-11e6-9f20-61cb01259544.png"/></p>
 
 # 0.8.0
-*2016-11-16*
+
+_2016-11-16_
+
 ## Features
+
 ### Theme Settings
+
 ❯ Implemented a new theme setting to use darker colors for focused forms like the `find-and-replace`- and `project-search` inputs. (@arcticicestudio, #43, 38d1ca07)
 
 <p align="center"><img src="https://cloud.githubusercontent.com/assets/7836623/20313180/636b4f48-ab56-11e6-8502-ad99f163c94b.png"/><br><strong>With default snow-inspired focus effect</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20311958/f694259c-ab51-11e6-8c2e-cf9dae01b774.gif"/><br><strong>With enabled setting for darker focus color effect</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20318435/871389f6-ab6a-11e6-8ab4-f33a5a63ae78.gif"/></p>
 
 ## Bug Fixes
+
 ❯ Fixed regexp groups in the `find-and-replace` inputs getting obscured if the current syntax highlighting theme uses light colors for these pattern. (@arcticicestudio, #39, fca9d9f5)
 
 <p align="center"><strong>Selected characters are now colored correctly</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20318449/998233c6-ab6a-11e6-9242-b1fca03bee9b.gif"/><br><strong>With enabled "Darker Form-Focusing Effect" theme setting the current syntax highlighting remains preserved</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20318452/9ccd68fc-ab6a-11e6-8886-1c2cacce14cf.gif"/></p>
 
 # 0.7.0
-*2016-11-12*
+
+_2016-11-12_
+
 ## Features
+
 ### Package Support
-❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/25722" width=16 height=16/>  [`tool-bar`](https://atom.io/packages/tool-bar) by [suda](https://github.com/suda) to make the tool-bar package fit more with the surrounding UI. (@arcticicestudio, #41, 010119c6)  
+
+❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/25722" width=16 height=16/> [`tool-bar`](https://atom.io/packages/tool-bar) by [suda](https://github.com/suda) to make the tool-bar package fit more with the surrounding UI. (@arcticicestudio, #41, 010119c6)
+
 <p align="center"><strong>Before</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20238574/f3ec4780-a8ee-11e6-8b4d-45b28ea5e6bb.png"/><br><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20238582/03dae0c0-a8ef-11e6-9cbd-2d8eb4785143.png"/></p>
 
-❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/7209979" width=16 height=16/>  [`minimap-git-diff`](https://atom.io/packages/minimap-git-diff) by [atom-minimap](https://github.com/atom-minimap) to make the minimap-git-diff package fit more with the theme color palette. (@arcticicestudio, #42, e5251f7)  
+❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/7209979" width=16 height=16/> [`minimap-git-diff`](https://atom.io/packages/minimap-git-diff) by [atom-minimap](https://github.com/atom-minimap) to make the minimap-git-diff package fit more with the theme color palette. (@arcticicestudio, #42, e5251f7)
+
 <p align="center"><strong>Before</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20238616/dcff8702-a8ef-11e6-9e7b-19e9aa813e87.png"/><br><strong>After</strong><br><img src="https://cloud.githubusercontent.com/assets/7836623/20238617/e3f5c8aa-a8ef-11e6-8acb-56e4acf568b8.png"/></p>
 
 ## Improvements
+
 ❯ The current active tab is now colored with a slightly lighter background color to differ from inactive tabs. (@arcticicestudio, #40, bc213c13)
 
 <p align="center"><img src="https://cloud.githubusercontent.com/assets/7836623/20320075/d9b84d6c-ab70-11e6-87ea-13707830719b.png"/></p>
 
 # 0.5.1
-*2016-11-01*
+
+_2016-11-01_
+
 ## Bug Fixes
+
 ### Documentation
+
 ❯ Fixed the `README` rendering caused by an malformed HTML tag chain
 
 # 0.5.0
-*2016-11-01*
+
+_2016-11-01_
+
 ## Features
+
 ### Theme Settings
-❯ The theme can now be tweaked by using the theme settings which can be found by clicking on the gear icon next to the *UI Theme* drop-down. (@arcticicestudio, #36, 98dfc25d)  
+
+❯ The theme can now be tweaked by using the theme settings which can be found by clicking on the gear icon next to the _UI Theme_ drop-down. (@arcticicestudio, #36, 98dfc25d)  
 The following options are available:
 
-*Full-Width Tab Sizing*
+_Full-Width Tab Sizing_
+
 > In full width mode, tabs will fill the whole tab bar.
 
 ![](https://cloud.githubusercontent.com/assets/7836623/19620532/ef4ef634-987f-11e6-89bd-5dda9bcade88.png)
 
 ### Package Support
-❯ Implemented support for the community package <img src="https://avatars1.githubusercontent.com/u/836375" width=16 height=16/>  [`script`](https://atom.io/packages/script) by [rgbkrk](https://github.com/rgbkrk) (@arcticicestudio, #37, b8f7e87a)
+
+❯ Implemented support for the community package <img src="https://avatars1.githubusercontent.com/u/836375" width=16 height=16/> [`script`](https://atom.io/packages/script) by [rgbkrk](https://github.com/rgbkrk) (@arcticicestudio, #37, b8f7e87a)
 
 # 0.4.0
-*2016-11-01*
+
+_2016-11-01_
+
 ## Features
+
 ### Package Support
-❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/6087523" width=16 height=16/>  [`imdone-atom`](https://atom.io/packages/imdone-atom) by [imdone](https://github.com/imdone) (@arcticicestudio, #38, 4214c7fa)
+
+❯ Implemented support for the community package <img src="https://avatars3.githubusercontent.com/u/6087523" width=16 height=16/> [`imdone-atom`](https://atom.io/packages/imdone-atom) by [imdone](https://github.com/imdone) (@arcticicestudio, #38, 4214c7fa)
 
 # 0.3.0
-*2016-09-29*
+
+_2016-09-29_
+
 ## Features
+
 ### Package Support
-❯ Implemented support for the community package <img src="https://avatars1.githubusercontent.com/u/933880" width=16 height=16/>  [`build`](https://atom.io/packages/build) by [noseglid](https://github.com/noseglid) (@arcticicestudio, #34, dfebe0c6)
+
+❯ Implemented support for the community package <img src="https://avatars1.githubusercontent.com/u/933880" width=16 height=16/> [`build`](https://atom.io/packages/build) by [noseglid](https://github.com/noseglid) (@arcticicestudio, #34, dfebe0c6)
 
 # 0.2.0
-*2016-09-20*
+
+_2016-09-20_
+
 ## Improvements
+
 ### Controls
+
 ❯ The background color of checked checkboxes is now the accent color instead of lime/green (@arcticicestudio, #33, 55b0be1f)
 
 ## Bugfixes
+
 ### Documentation
+
 ❯ Fixed all unrendered images in the [atom.io](https://atom.io/themes/nord-atom-ui) package README by using the `https://raw.githubusercontent.com` domain (@arcticicestudio, #32, 9db9fed2)
 
 # 0.1.0
-*2016-09-20*
+
+_2016-09-20_
 **Initial APM package release version!**  
-*Closes the [APM Package Release](https://github.com/arcticicestudio/nord-atom-ui/milestone/1) milestone.*
+_Closes the [APM Package Release](https://github.com/arcticicestudio/nord-atom-ui/milestone/1) milestone._
 
 ## Features
+
 A complete list of all implemented features can be found in the [README](https://github.com/arcticicestudio/nord-atom-ui/blob/develop/README.md#features) section.
 
 ### Package Support
+
 The [Package Support](https://github.com/arcticicestudio/nord-atom-ui/milestone/2) milestone backlog ticket #20 contains a list of all currently implemented- and planned package supports.  
 Detailed information of already implemented packages can be found in the [project wiki](https://github.com/arcticicestudio/nord-atom-ui/wiki/Package-Support).
 
-**Community**  
-  - <img src="https://avatars3.githubusercontent.com/u/2833514" width=16 height=16/>  [`color-picker`](https://atom.io/packages/color-picker) by [thomaslindstrom](https://github.com/thomaslindstrom) (@arcticicestudio, #21, 132eb795)
-  - <img src="https://avatars0.githubusercontent.com/u/659763" width=16 height=16/>  [`expose`](https://atom.io/packages/expose) by [mrodalgaard](https://github.com/mrodalgaard) (@arcticicestudio, #30, 4e70ed1d)
-  - <img src="https://avatars3.githubusercontent.com/u/7209979" width=16 height=16/>  [`minimap`](https://atom.io/packages/minimap) by [atom-minimap](https://github.com/atom-minimap) (@arcticicestudio, #28, 8ba2bddc)
-  - <img src="https://avatars0.githubusercontent.com/u/696872" width=16 height=16/>  [`project-manager`](https://atom.io/packages/project-manager) by [danielbrodin](https://github.com/danielbrodin) (@arcticicestudio, #29, 233233dd)
+**Community**
+
+- <img src="https://avatars3.githubusercontent.com/u/2833514" width=16 height=16/> [`color-picker`](https://atom.io/packages/color-picker) by [thomaslindstrom](https://github.com/thomaslindstrom) (@arcticicestudio, #21, 132eb795)
+- <img src="https://avatars0.githubusercontent.com/u/659763" width=16 height=16/> [`expose`](https://atom.io/packages/expose) by [mrodalgaard](https://github.com/mrodalgaard) (@arcticicestudio, #30, 4e70ed1d)
+- <img src="https://avatars3.githubusercontent.com/u/7209979" width=16 height=16/> [`minimap`](https://atom.io/packages/minimap) by [atom-minimap](https://github.com/atom-minimap) (@arcticicestudio, #28, 8ba2bddc)
+- <img src="https://avatars0.githubusercontent.com/u/696872" width=16 height=16/> [`project-manager`](https://atom.io/packages/project-manager) by [danielbrodin](https://github.com/danielbrodin) (@arcticicestudio, #29, 233233dd)
 
 ## <img src="https://avatars0.githubusercontent.com/u/1089146" width=16 height=16/> Core
-  - [`autocomplete-plus`](https://atom.io/packages/autocomplete-plus) (@arcticicestudio, #22, 44714fd6)
-  - [`deprecation-cop`](https://atom.io/packages/deprecation-cop) (@arcticicestudio, #23, e9b9a1b2)
-  - [`markdown-preview`](https://atom.io/packages/markdown-preview) (@arcticicestudio, #27, 11ed42e6)
-  - [`timecop`](https://atom.io/packages/timecop) (@arcticicestudio, #24, 20653ad8)
+
+- [`autocomplete-plus`](https://atom.io/packages/autocomplete-plus) (@arcticicestudio, #22, 44714fd6)
+- [`deprecation-cop`](https://atom.io/packages/deprecation-cop) (@arcticicestudio, #23, e9b9a1b2)
+- [`markdown-preview`](https://atom.io/packages/markdown-preview) (@arcticicestudio, #27, 11ed42e6)
+- [`timecop`](https://atom.io/packages/timecop) (@arcticicestudio, #24, 20653ad8)
 
 <!--
 +------------------+
@@ -254,4 +319,4 @@ Detailed information of already implemented packages can be found in the [projec
 
 [gh-user-noseglid]: https://github.com/noseglid
 [nord-docs#166]: https://github.com/arcticicestudio/nord-docs/issues/166
-[nord#55]: https://github.com/arcticicestudio/nord/issues/55
+[nord#55]: https://github.com/arcticicestudio/nord/issues/55