update Changes.md

Author: clarasb

chartlets.js/CHANGES.md

@@ -11,6 +11,9 @@
 * Typology component now allows color and text arguments. 
   If a user uses text and children, the text argument replaces the 
   children.
+  
+* Applied changes to the return value of `Tabs` component and added 
+  demo panel H, that showcases the use of `Tabs` component. (#129).
 
 ## Version 0.1.6 (from 2025/06/18)