Mentions AI assisted PR creation in the changelog

Author: sergeibbb

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ### Added
 
 - Adds AI model status and model switcher to the _Home_ view ([#4064](https://github.com/gitkraken/vscode-gitlens/issues/4064))
+- Adds an optional "Create with AI" button to generate pull requests using AI assistance for GitHub and GitLab. ([#43](https://github.com/gitkraken/vscode-gitlens-private/issues/43))
 - Adds Anthropic Claude 3.7 Sonnet model for GitLens' AI features ([#4101](https://github.com/gitkraken/vscode-gitlens/issues/4101))
 - Adds Google Gemini 2.5 Pro (Experimental) and Gemini 2.0 Flash-Lite model for GitLens' AI features ([#4104](https://github.com/gitkraken/vscode-gitlens/issues/4104))
 - Adds integration with Bitbucket Cloud and Data Center ([#3916](https://github.com/gitkraken/vscode-gitlens/issues/3916))