Fix CHANGELOG and release notes for PR #5

The changelog bot and release notes bot failed on PR #5 because
the workflows lacked permissions at the time. Manually applying
the changes those bots would have made.

Author: SeanTAllen

.release-notes/5.md .release-notes/next-release.md.release-notes/5.md renamed to .release-notes/next-release.md

@@ -9,6 +9,7 @@ All notable changes to this project will be documented in this file. This projec
 
 ### Added
 
+- Add the Pony icon to the VS Code extension ([PR #5](https://github.com/ponylang/vscode-extension/pull/5))
 - Initial version
 
 ### Changed