Changes

This is a useful tool to find "bad", i.e. insufficient [[Warhammer_40k_-_Lexicanum:Citation#Web_site_sourcing|external sources]] used in articles or for files. It can also help to replace links to ''external'' sources that are in danger of [[Warhammer_40k_-_Lexicanum:Citation#Inactive.2C_archived_sites|disappearing from the internet]] with more secure [[Wikipedia:Wayback Machine|archive links]]. Likewise the tool could be used to find other examples of "broken" ''external'' links if one discovers that a particular website has been taken offlineand is therefore not a working source for the ''Lexicanum'' anymore.