Fixes to Arch sections

Installing-on-Linux.md

@@ -1,5 +1,3 @@
-NOTE: Only 32-bit architectures are supported, or distributions that allow the installation of 32-bit packages under a 64-bit architecture.
-
 ## Index
 
 1. [Introduction](#introduction)
@@ -42,21 +40,11 @@ You have been warned!
 
 #### Build system
 
-`gcc-multilib`, `cmake` 
+`gcc`, `cmake` 
 
-#### 32-bit libraries
+#### Libaries. Note that wxgtk3 is AUR only. Depencies may change in the future
 
-Add or uncomment the following lines in `/etc/pacman.conf`:
-```
-[Multilib]
-Include = /etc/pacman.d/mirrorlist
-```
-Refresh package list:
-```
-pacman -Syu
-```
-
-`lib32-libaio` `lib32-libpng` `lib32-portaudio` `lib32-sdl2` `lib32-soundtouch` `lib32-wxgtk3` `lib32-libx11` `lib32-xz` `lib32-libsamplerate` 
+`libaio` `libpng` `portaudio` `sdl2` `soundtouch` `wxgtk3` `libx11` `xz` `libsamplerate`
 
 ### Using CMake
 
@@ -273,26 +261,14 @@ sudo apt-get install pcsx2-unstable
 
 ## Arch Linux
 
-NOTE: for 64-bit architectures, [multilib](https://wiki.archlinux.org/index.php/multilib) must be enabled in order to install PCSX2. 
-
-### PCSX2 Stable
+### Main repo
 
 Open a terminal, and type:
 ```
 sudo pacman -S pcsx2
 ```
 
-### PCSX2 Unstable
-
-Add or uncomment the following lines in `/etc/pacman.conf`:
-```
-[multilib]
-Include = /etc/pacman.d/mirrorlist
-```
-Refresh the package list and update:
-```
-pacman -Syu
-```
+### Aur
 
 Clone the AUR package, then cd to the correct folder, make and install the package:
 ```
@@ -300,7 +276,13 @@ git clone https://aur.archlinux.org/pcsx2-git.git
 cd pcsx2-git
 makepkg -csi
 ```
-This will build the package, automatically installing all dependencies. It will then prompt for your password to install the package with pacman. 
+This will build the package, automatically installing all dependencies. It will then prompt for your password to install the package with pacman.
+
+Alternatively use an AUR helper like yay
+
+```
+yay -S pcsx2-git
+```
 
 
 ## How to compile PCSX2 in 2021 (Ubuntu 20.04) (64bit)