Update CHANGELOG.md

Author: Andrew-S-Rosen

CHANGELOG.md

@@ -9,7 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Added
 
 - The folders generated by quacc recipes now follows a hierarchical folder structure if the setting `AUTODISCOVER_DIR`
-  is set to `true.`
+  is set to `true`
 
 ## [1.2.0]