regionchange.wiiu: Swap wiki guide with GBAtemp guide

Author: YukihiraS0ma

cogs/assistance-cmds/regionchange.wiiu.md

@@ -1,6 +1,6 @@
 ---
 title: Region Changing
-url: https://wiki.hacks.guide/wiki/Wii_U:Region_Changing
+url: https://gbatemp.net/threads/region-changing-the-wii-u.650802/
 author.name: Lazr1026
 thumbnail-url: https://avatars.githubusercontent.com/u/68634861?v=4
 help-desc: Links to region changing guide for the Wii U.