feat: Add thirt-party repository

Author: Hayao0819

alteriso/configs/xfce/packages.x86_64.d/thirdparty-mirrors.x86_64

@@ -0,0 +1,5 @@
+archlinuxcn-mirrorlist-git
+archlinuxcn-keyring
+
+blackarch-mirrorlist
+blackarch-keyring

alteriso/configs/xfce/pacman.conf

@@ -90,8 +90,15 @@ Include = /etc/pacman.d/mirrorlist
 #[multilib-testing]
 #Include = /etc/pacman.d/mirrorlist
 
-#[multilib]
-#Include = /etc/pacman.d/mirrorlist
+[multilib]
+Include = /etc/pacman.d/mirrorlist
+
+[archlinuxcn]
+Include = /etc/pacman.d/archlinuxcn-mirrorlist
+
+[blackarch]
+Include = /etc/pacman.d/blackarch-mirrorlist
+
 
 # An example of a custom package repository.  See the pacman manpage for
 # tips on creating your own repositories.