Update CHANGELOG.md

Author: mansab

CHANGELOG.md

@@ -1,3 +1,16 @@
+## 3.1.0
+
+* Modularize the source code
+* Create separate modules for app, helpers, routes & config
+* Update unit tests
+
+## 3.0.1
+
+* Fix for v3.0.0
+* Update the Dockerfile
+* Allow overriding the python command attribute to switch b/w pat-auth and app-auth
+* Update readme
+
 ## 3.0.0
 
 * Add support for Github App based authentication