docs: Update changelog

docs/changelog.rst

@@ -20,6 +20,10 @@ v0.18.0 (UNRELEASED)
   virtual file system of tracks. Backends can implement support for this by
   implementing :meth:`mopidy.backends.base.BaseLibraryController.browse`.
 
+- Events emitted on play/stop, pause/resume, next/previous and on end of track
+  has been cleaned up to work consistenly. See the message of
+  :commit:`1d108752f6` for the full details.
+
 **Backend API**
 
 - Move the backend API classes from :mod:`mopidy.backends.base` to

docs/conf.py

@@ -161,6 +161,7 @@ man_pages = [
 
 extlinks = {
     'issue': ('https://github.com/mopidy/mopidy/issues/%s', '#'),
+    'commit': ('https://github.com/mopidy/mopidy/commit/%s', 'commit '),
     'mpris': (
         'https://github.com/mopidy/mopidy-mpris/issues/%s', 'mopidy-mpris#'),
 }