added whitespace

Author: Marco van Angeren

src/chat/CHANGELOG.md

@@ -2,6 +2,7 @@ CHANGELOG
 =========
 0.1
 ---
+
   * Add streaming support to `ChatInterface::submit()`
     - Add `StreamableStoreInterface` which indicates `StoreInterface` implementation can be configured with streaming 
     - Add `AccumulatingStreamResult` wrapper class which adds accumulation logic & callback chaining to `StreamResult` implementations (can wrap both `Agent` and `Platform` variants) to return the full message once `Generator` is exhausted