Add CJ V3.1 changelog

Author: AtibQur

sites/cheerpj/src/content/docs/22-changelog.md

@@ -2,7 +2,7 @@
 title: Changelog
 ---
 
-## [3.1](https://cheerpj.com/blog/) - February 5, 2025
+## [3.1](https://cheerpj.com/cheerpj-3.1) - February 5, 2025
 
 ```html
 <script src="https://cjrtnc.leaningtech.com/3.1/cj3loader.js"></script>
@@ -16,7 +16,6 @@ title: Changelog
 - Improved debugging options
 - Improved performance
 
-
 ## [3.0](https://cheerpj.com/cheerpj-3-now-generally-available/) - February 1, 2024
 
 ```html