Update release notes.

mrpau-eugene · mrpau-eugene · commit d70117898c38 · 2017-06-27T11:57:30.000+08:00
diff --git a/docs/installguide/release_notes.rst b/docs/installguide/release_notes.rst
@@ -21,6 +21,7 @@ New Features
 ^^^^^^^^^^^^
 
 * Enabled captions by default for English dubbed videos. :url-issue:`5464`
+* About/Diagnose page. :url-issue:`5452`
 
 
 0.17.1
