Fix change log

Author: wu-hui

firebase-firestore/CHANGELOG.md

@@ -2,12 +2,12 @@ Android changes are not released automatically. Ensure that changes are released
 by opting into a release at 
 [go/firebase-android-release](http:go/firebase-android-release) (Googlers only).
 
-# 24.1.2
 # Unreleased
-- [changed] Added `TransactionOptions` to control how many times a transaction
+
+# 24.1.2
+- [feature] Added `TransactionOptions` to control how many times a transaction
   will retry commits before failing.
 - [fixed] Fixed an issue where patching multiple fields shadows each other (#3528).
-- [feature] Added customization support for `FirebaseFirestore.runTransaction`.
 
 # 24.1.1
 - [fixed] Fixed an issue in the experimental index engine that might have