docs: update README.md

Author: songkg7

README.md

@@ -1,10 +1,9 @@
 # O2
 
-[![GitHub release (latest by date)](https://img.shields.io/github/v/release/songkg7/O2)](https://github.com/songkg7/o2/releases)
 [![CI](https://github.com/songkg7/o2/actions/workflows/ci.yml/badge.svg)](https://github.com/songkg7/o2/actions/workflows/node.js.yml)
 [![CodeFactor](https://www.codefactor.io/repository/github/songkg7/o2/badge)](https://www.codefactor.io/repository/github/songkg7/o2)
 [![codecov](https://codecov.io/gh/songkg7/o2/branch/main/graph/badge.svg?token=AYQGNW0SWR)](https://codecov.io/gh/songkg7/o2)
-[![GitHub license](https://img.shields.io/github/license/songkg7/O2)](https://github.com/songkg7/o2/blob/main/LICENSE)
+[![GitButler](https://img.shields.io/badge/GitButler-%23B9F4F2?logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%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%2BCjxkZWZzPgo8cmFkaWFsR3JhZGllbnQgaWQ9InBhaW50MF9yYWRpYWxfMzEwXzEyOSIgY3g9IjAiIGN5PSIwIiByPSIxIiBncmFkaWVudFVuaXRzPSJ1c2VyU3BhY2VPblVzZSIgZ3JhZGllbnRUcmFuc2Zvcm09InRyYW5zbGF0ZSgxNi41NzAxIDE0KSBzY2FsZSgxOS44NjQxIDE5LjgzODMpIj4KPHN0b3Agb2Zmc2V0PSIwLjMwMTA1NiIgc3RvcC1vcGFjaXR5PSIwIi8%2BCjxzdG9wIG9mZnNldD0iMSIvPgo8L3JhZGlhbEdyYWRpZW50Pgo8L2RlZnM%2BCjwvc3ZnPgo%3D )](https://gitbutler.com/)
 [![Obsidian downloads](https://img.shields.io/badge/dynamic/json?logo=Obsidian&color=%238b6cef&label=downloads&query=o2.downloads&url=https://raw.githubusercontent.com/obsidianmd/obsidian-releases/master/community-plugin-stats.json)][community-plugin]
 
 [community-plugin]: https://obsidian.md/plugins?id=o2
@@ -96,6 +95,5 @@ Welcome to write articles about O2!
 ## License
 
 This project is published under [MIT](https://choosealicense.com/licenses/mit/) license.
-
 [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/V7V8KX38Q)