chore(doc): sort the third party frontend list

Author: Bambooin

README.md

@@ -74,12 +74,12 @@ Official:
   - [Weasel](https://github.com/rime/weasel): frontend for Windows
 
 Third-party:
+  - [emacs-rime](https://github.com/DogLooksGood/emacs-rime): frontend for Emacs
   - [fcitx-rime](https://github.com/fcitx/fcitx-rime): Fcitx frontend for Linux
   - [iRime](https://github.com/jimmy54/iRime): frontend for iOS
   - [PIME](https://github.com/EasyIME/PIME): frontend for Windows
   - [Trime](https://github.com/osfans/trime): frontend for Android
   - [XIME](https://github.com/stackia/XIME): frontend for macOS
-  - [emacs-rime](https://github.com/DogLooksGood/emacs-rime): frontend for Emacs
 
 Plugins
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