Update changelog

CHANGELOG.md

@@ -52,7 +52,8 @@
 - Updated ApiV1Controller, add ```mobile_apis``` to /api/v1/instance endpoint ([57407463](https://github.com/pixelfed/pixelfed/commit/57407463))
 - Updated PublicTimelineService, add video media scopes ([7b00eba3](https://github.com/pixelfed/pixelfed/commit/7b00eba3))
 - Updated PublicApiController, add AccountService ([5ebd2c8a](https://github.com/pixelfed/pixelfed/commit/5ebd2c8a))
-- Update CommentController, fix scope bug ([45ecad2a](https://github.com/pixelfed/pixelfed/45ecad2a))
+- Updated CommentController, fix scope bug ([45ecad2a](https://github.com/pixelfed/pixelfed/45ecad2a))
+- Updated CollectionController, increase limit from 18 to 50. ([c2826fd3](https://github.com/pixelfed/pixelfed/c2826fd3))
 
 ## Deprecated