Add changelog entry for Indexmap entry api

MarcusGrass · japaric · commit b6f4bc03d2a3 · 2022-05-09T16:57:47.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,10 +9,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+* Add Entry Api to IndexMap
+
 ### Changed
 
 ### Fixed
 
+* Inserting an item that replaces an already present item will no longer
+fail with an error
+
 ## [v0.7.11] - 2022-05-09
 
 ### Fixed
