Fix Arch's install example

szczot3k · web-flow · commit ad4b3795dcd7 · 2020-07-27T12:29:05.000+02:00
As the package was moved from AUR to community repo the command needs update as well.
diff --git a/README.md b/README.md
@@ -139,10 +139,10 @@ Install and upgrade:
 
 ### Arch Linux
 
-Arch Linux users can install from the AUR: https://aur.archlinux.org/packages/github-cli/
+Arch Linux users can install from the community repo: https://www.archlinux.org/packages/community/x86_64/github-cli/
 
 ```bash
-yay -S github-cli
+pacman -S github-cli
 ```
 
 ### Other platforms
