Merge pull request #2915 from vitor-k/patch-1

Link to Yuzu's wiki instead of Citra's

CONTRIBUTING.md

@@ -1 +1 @@
-**The Contributor's Guide has moved to [the Citra wiki](https://github.com/citra-emu/citra/wiki/Contributing).**
+**The Contributor's Guide has moved to [the Yuzu wiki](https://github.com/yuzu-emu/yuzu/wiki/Contributing).**