[README] Update AUR info (#3291)

* [README] Update AUR info

* Add .prettierignore entry for cla.json

* chore: update signed commit message

---------

Co-authored-by: Flavio F Lima <[email protected]>

.github/workflows/cla.yml

@@ -27,4 +27,4 @@ jobs:
           branch: 'main'
           allowlist: weblate,bot*
           create-file-commit-message: '[CLA] Creating file for storing CLA Signatures'
-          signed-commit-message: '[CLA] $contributorName has signed the CLA in $pullRequestNo'
+          signed-commit-message: '[CLA] $contributorName has signed the CLA in $owner/$repo#$pullRequestNo'

.prettierignore

@@ -7,3 +7,4 @@ flatpak
 flatpak-build
 sign/
 .github/workflows/build-base.yml
+signatures/version1/cla.json

README.md

@@ -154,12 +154,10 @@ Double-click it to open it up in your Software Manager, or run `sudo dpkg -i her
 
 #### Arch (AUR)
 
-We have two AUR packages available:
+We currently only support one AUR package: `heroic-games-launcher-bin`. Although you might find other packages there, do not ask support for them on this Github or on our Discord, ask their maintainers directly.
 
 - [![Stable version badge](https://img.shields.io/aur/version/heroic-games-launcher-bin?style=flat&label=heroic-games-launcher-bin)](https://aur.archlinux.org/packages/heroic-games-launcher-bin)  
   (stable release, recommended)
-- [![Beta version badge](https://img.shields.io/aur/version/heroic-games-launcher-beta-bin?style=flat&label=heroic-games-launcher-beta-bin)](https://aur.archlinux.org/packages/heroic-games-launcher-beta-bin)  
-  (beta release, contains newer features but might be unstable)
 
 Please see [the Arch Wiki](https://wiki.archlinux.org/title/Arch_User_Repository#Installing_and_upgrading_packages) on how to install them