add README for MacAir7,2

configs/sway_g/MacAir7,2/README.md

@@ -1,11 +1,11 @@
-# Sway config for Macbook Air 7,2 (2017)
+## Sway config for Macbook Air 7,2 (2017)
 **Specs:**
 - 8GB RAM
 - Intel Quad Core i5-5350U
 - Instel HD Graphics 6000
 - 256 GB SSD
 
-# Dependencies
+### Dependencies
 **Arch**
 ```bash
 sudo pacman -S swaybg swayidle swaylock mako
@@ -15,3 +15,7 @@ sudo pacman -S swaybg swayidle swaylock mako
 yay swayfx # Pick the first option
 yay tofi # Pick the first option
 ```
+#### Audio driver
+```bash
+sudo pacman -S pavucontrol
+```