Add AUR tag + beautify tags

Author: hbarsaiyan

readme.md

@@ -1,11 +1,16 @@
 # YouTube Music
 
-[![GitHub release](https://img.shields.io/github/release/th-ch/youtube-music.svg)](https://GitHub.com/th-ch/youtube-music/releases/)
-[![GitHub license](https://img.shields.io/github/license/th-ch/youtube-music.svg)](https://github.com/th-ch/youtube-music/blob/master/LICENSE)
-[![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
-[![Build status](https://github.com/th-ch/youtube-music/workflows/Build%20YouTube%20Music/badge.svg)](https://GitHub.com/th-ch/youtube-music/releases/)
-[![Known Vulnerabilities](https://snyk.io/test/github/th-ch/youtube-music/badge.svg)](https://snyk.io/test/github/th-ch/youtube-music)
-![GitHub All Releases](https://img.shields.io/github/downloads/th-ch/youtube-music/total)
+<div align="center">
+
+[![GitHub release](https://img.shields.io/github/release/th-ch/youtube-music.svg?style=for-the-badge)](https://github.com/th-ch/youtube-music/releases/)
+[![GitHub license](https://img.shields.io/github/license/th-ch/youtube-music.svg?style=for-the-badge)](https://github.com/th-ch/youtube-music/blob/master/LICENSE)
+[![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg?style=for-the-badge)](https://github.com/sindresorhus/xo)
+[![Build status](https://img.shields.io/github/workflow/status/th-ch/youtube-music/Build%20YouTube%20Music?style=for-the-badge)](https://GitHub.com/th-ch/youtube-music/releases/)
+[![Known Vulnerabilities](https://img.shields.io/snyk/vulnerabilities/github/th-ch/youtube-music?style=for-the-badge)](https://snyk.io/test/github/th-ch/youtube-music)
+![GitHub All Releases](https://img.shields.io/github/downloads/th-ch/youtube-music/total?style=for-the-badge)
+![AUR](https://img.shields.io/aur/version/youtube-music-bin?color=blueviolet&style=for-the-badge)
+
+</div>
 
 ![Screenshot](screenshot.jpg "Screenshot")
 
@@ -18,7 +23,7 @@
 
 You can check out the [latest release](https://github.com/th-ch/youtube-music/releases/latest) to quickly find the latest version.
 
-**Arch Linux**
+### Arch Linux
 
 Install the `youtube-music-bin` package from the AUR. For AUR installation instructions, take a look at this [wiki page](https://wiki.archlinux.org/index.php/Arch_User_Repository#Installing_packages).