Updated mediawiki/extensions
Project: mediawiki/extensions/SubpageFun  3e76b780a510e1e40dd9bdd09e5b79f41859b3db

i18n: consistency tweaks

- Replace http by https
- Add Special:MyLanguage

Spotted by Siebrand
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Subpagefun-desc/en

Change-Id: Ia02c6b8574c79ee1d63a735be6324ed0a5aaf10d