CHANGELOG.md in format_parser-0.19.0 vs CHANGELOG.md in format_parser-0.20.0

@@ -1,4 +1,7 @@
+## 0.20.0
+* Correctly tag the license on Rubygems as MIT (Hippocratic) for easier audit
+
 ## 0.19.0
 * Improve handling of Sony ARW files (make sure the width/height is correctly recognized)
 * Update Travis matrix and gitignore
 
 ## 0.18.0