Update changelog

* Fixes #32
* Fixes #30
* Fixes #31

Author: PEZ

CHANGELOG.md

@@ -5,6 +5,8 @@ Changes to Calva Backseat Driver
 ## [Unreleased]
 
 - Fix: [The structural insert/replace top-level forms tools do not prevent editing non-top-level forms](https://github.com/BetterThanTomorrow/calva-backseat-driver/issues/32)
+- [Add tool for creating files](https://github.com/BetterThanTomorrow/calva-backseat-driver/issues/30)
+- [Add tool for appending top-level forms to a file](https://github.com/BetterThanTomorrow/calva-backseat-driver/issues/31)
 
 ## [v0.0.18] - 2025-08-21