Merge pull request #3281 from davidbarratt/master

Add MediaWiki

library/mediawiki

@@ -0,0 +1,13 @@
+Maintainers: David Barratt <[email protected]> (@davidbarratt),
+             Ryan Kaldari <[email protected]> (@kaldari)
+GitRepo: https://github.com/wikimedia/mediawiki-docker.git
+GitCommit: 76ad8cc3ddc56701522025583c126ad38335a364
+
+Tags: stable, latest, 1.29, 1.29.0
+Directory: stable
+
+Tags: legacy, 1.28, 1.28.2
+Directory: legacy
+
+Tags: lts, 1.27, 1.27.3
+Directory: lts