Update CHANGELOG.md

Author: joetannenbaum

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to the Laravel extension will be documented in this file.
 
 ## [Unreleased]
 
+- Nothing yet
+
+## [0.1.20]
+
 - Improved Gate/Policy support ([#254](https://github.com/laravel/vs-code-extension/pull/254))
 - Translation performance improvements ([#256](https://github.com/laravel/vs-code-extension/pull/256))
 - Basic linking to Blade component views ([#257](https://github.com/laravel/vs-code-extension/pull/257))