Update Changelog

Author: pascalduez

CHANGELOG.md

@@ -6,6 +6,10 @@
 * Fix an issue where `.sassdocrc` was ignored when using Node.js API
 ([#363](https://github.com/SassDoc/sassdoc/issues/363))
 
+## 2.0.3
+
+* Fix the CLI synopsis, SassDoc can't be executed without arguments.
+
 ## 2.0.2
 
 * Move to 6to5 3 in `selfContained` mode to avoid global scope pollution ([#354](https://github.com/SassDoc/sassdoc/issues/354#issuecomment-72464640))