Update README.md

Author: wolffe

README.md

@@ -8,3 +8,15 @@ A dark theme, created for speed coding, sporting a modern user interface.
 * Switch to "Themes" tab
 * Search for "The Greyhound"
 * Click "Install"
+
+## Changelog
+
+= 1.1.1 =
+
+* UPDATE: Added changelog
+* UPDATE: Updated the Brackets registry for version consistency
+
+= 1.1.0 =
+
+* UI: Fixed sidebar background colour
+* UI: Improved editing pane background colour