[CHANGELOG.md] minor edits / formatting of log

Author: chrissimpkins

CHANGELOG.md

@@ -2,9 +2,10 @@
 
 ## v0.3.0
 
-- Add support for filtered diff output by top n lines with new `--head` option
-- Add support for filtered diff output by last n lines with new `--tail` option
-- Add new `fdiff.textiter` module
+- Added support for head and tail diff output filter functionality
+	- `fdiff` executable: add support for filtered diff output by top n lines with new `--head` option
+	- `fdiff` executable: add support for filtered diff output by last n lines with new `--tail` option
+	- Library: add new `fdiff.textiter` module
 - Add README.md table of contents
 
 ## v0.2.0