Update CHANGELOG.md (#4433)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: community-scripts-pr-app[bot]

CHANGELOG.md

@@ -24,6 +24,7 @@ All LXC instances created using this repository come pre-installed with Midnight
 
   - #### 📝 Script Information
 
+    - Pingvin Share: Added explanation on how to add/edit environment variables [@tremor021](https://github.com/tremor021) ([#4432](https://github.com/community-scripts/ProxmoxVE/pull/4432))
     - pingvin.json: fix typo [@warmbo](https://github.com/warmbo) ([#4426](https://github.com/community-scripts/ProxmoxVE/pull/4426))
 
 ## 2025-05-12