update changelog

Author: jeffreyvr

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 All notable changes to `dropblockeditor` will be documented in this file.
 
+## Unreleased
+
+-
+
+## 0.1.3 - 2022-06-23
+
+- added `preview_css` config option (thanks @TechTomaz)
+- fix path make block command (lowercase `app`) (thanks @Carnicero90)
+
 ## 0.1.2 - 2022-05-12
 
 - allow html parser base template to be a string