Fix Arch Linux installing instructions on README

Author: ErenayDev

README.md

@@ -19,7 +19,7 @@ cachefetch is very fast, configurable CLI fetch tool thats shows your cache file
 ### Arch Linux / AUR
 
 ```sh
-$ sudo pacman -S
+$ sudo pacman -S cachefetch-bin
 ```
 
 Or you can directly install prebuilt binary with [binstall](https://github.com/cargo-bins/cargo-binstall).
@@ -38,6 +38,12 @@ $ cd cachefetch
 $ cargo install --path .
 ```
 
+Or with `yay`
+
+```bash
+$ yay -S cachefetch
+```
+
 After installation, you can run `cachefetch` in your terminal.
 
 ## Configuration