Fix unconverted PRs in the changelog (#11155)

CHANGELOG.md

@@ -6,16 +6,16 @@ All notable changes to this project will be documented in this file.
 ## [2.9.2] - 2019-06-22
 ### Added
 
-- Add `short_description` and `approval_required` to `GET /api/v1/instance` (#11146)
+- Add `short_description` and `approval_required` to `GET /api/v1/instance` ([Gargron](https://github.com/tootsuite/mastodon/pull/11146))
 
 ### Changed
 
-- Change camera icon to paperclip icon in upload form (#11149)
+- Change camera icon to paperclip icon in upload form ([koyuawsmbrtn](https://github.com/tootsuite/mastodon/pull/11149))
 
 ### Fixed
 
-- Fix audio-only OGG and WebM files not being processed as such (#11151)
-- Fix audio not being downloaded from remote servers (#11145)
+- Fix audio-only OGG and WebM files not being processed as such ([Gargron](https://github.com/tootsuite/mastodon/pull/11151))
+- Fix audio not being downloaded from remote servers ([Gargron](https://github.com/tootsuite/mastodon/pull/11145))
 
 ## [2.9.1] - 2019-06-22
 ### Added