Update links to point to new wiki (#894)

Documentation was moved from GitBook to MkDocs so the links to the wiki should updated accordingly.

Northstar.Client/mod/scripts/vscripts/ui/atlas_auth.nut

@@ -37,7 +37,7 @@ void function AtlasAuthDialog_Threaded()
 	if ( res.errorCode != "" )
 		dialogData.message += format( "\n\n%s", Localize( "#AUTHENTICATION_FAILED_ERROR_CODE", res.errorCode ) )
 
-	string link = "https://r2northstar.gitbook.io/r2northstar-wiki/installing-northstar/troubleshooting"
+	string link = "https://docs.northstar.tf/Wiki/installing-northstar/troubleshooting/"
 	// link to generic troubleshooting page if we don't have an error code from Atlas
 	if ( res.errorCode != "" )
 		link = format( "%s#%s", link, res.errorCode )

README.md

@@ -3,7 +3,7 @@
 <img src="https://translate.harmony.tf/widgets/northstar/-/client/svg-badge.svg" alt="Translation status" />
 </a>
 
-[Squirrel](http://www.squirrel-lang.org/squirreldoc/reference/index.html) scripts used to recreate server-side gamelogic and add [custom content](https://r2northstar.gitbook.io/r2northstar-wiki/using-northstar/gamemodes) to the game. 
+[Squirrel](http://www.squirrel-lang.org/squirreldoc/reference/index.html) scripts used to recreate server-side gamelogic and add [custom content](https://docs.northstar.tf/Wiki/using-northstar/gamemodes/) to the game. 
 
 ## Contents: