Update Changelog

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add Report show page and link Moderation log references to the respective reports
 - Add Unconfimed filter for Users table
 - Filter users by actor type: Person, Bot or Application
+- Add ability to configure Media Preview Proxy, User Backup and Websocket based federation settings
 
 ### Changed
 
@@ -26,6 +27,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix depricatied action names in Reports, move actions that manage users from Reports to reports module
 - Allow using underscores and hyphens in new account's usernames
 - Fix wrapping `:icons` setting and parsing tuples in settings with key `:headers`
+- Update keys for Pleroma.Web.Plugs.RemoteIp and PurgeExpiredActivity settings
 
 ## [2.2] - 2020-11-18