Small updates

arch-install.md

@@ -12,6 +12,8 @@ base_packages=(
   amd-ucode  # AMD CPU microcode updates loaded by the boot loader
   sudo       # Run commands as root from the user account
   git        # Version control and cloning dotfiles
+  which
+  base-devel
 )
 
 pacstrap -K /mnt "${base_packages[@]}"