CHANGELOG.md in starcall-0.2.1 vs CHANGELOG.md in starcall-0.3.0

@@ -11,9 +11,25 @@
 ### Bug fixes 
 None
 
 ---
 
+## v0.3.0 - Alistar
+![Alistar](http://ddragon.leagueoflegends.com/cdn/10.12.1/img/champion/Alistar.png)
+
+### New features
+- Added the 3 Champion Mastery Endpoints. 
+- `ApiRequests` now checks for an API key called `RIOT_API_KEY` and adds to the headers.
+- Added a region parser as the API URLs require a region, but they are not the same as the normal regions.
+
+### Changes
+- Move `ApiRequests` under the `Starcall` namespace.
+- Move errors in to their own directory.
+
+### Bug fixes 
+
+---
+
 ## v0.2.1 - Akali
 ![Akali](http://ddragon.leagueoflegends.com/cdn/10.12.1/img/champion/Akali.png)
 
 ### New features
 None