Update changelog

Author: josemontespg

renderers/angular/CHANGELOG.md

@@ -1,9 +1,9 @@
-## Unreleased
+## 0.9
 
-- (v0_9) Re-style the v0_9 catalog components using the default theme from
+- Re-style the v0_9 catalog components using the default theme from
   `web_core`. [#1166](https://github.com/google/A2UI/pull/1166)
 - [Breaking change] the `children` property value changed from `props().children().value() -> Child[]` to 
-`props().children().value() -> Children`. This provides a type safe wrapper to access the child list, path and component template ID.
+`props().children().value() -> Children`. This provides a type safe wrapper to access the child list, path and component template ID. [#1312](https://github.com/google/A2UI/pull/1312/changes#top)
 
 ## 0.8.5