Updated mediawiki/extensions
Project: mediawiki/extensions/MapSources  681601208004f40756184da8760494b0f9831f86

Make messages more consistent and less ambiguous

All the links say "find", among other things.
<https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Mapsources-desc/cy>

Change-Id: I5d00ec8d0c3ca7443845e0262979a00bd239b5aa