Update CHANGELOG.md

Co-authored-by: Kris West <kris.west@interop.io>

Author: Roaders

CHANGELOG.md

@@ -69,7 +69,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - resolves ([#1487](https://github.com/finos/FDC3/issues/1487))
   - resolves ([#1488](https://github.com/finos/FDC3/issues/1488))
 * Adjusted reference Desktop Agent implementation for FDC3 for Web to open a new app instance when raiseIntent is called with an appId but no instanceId ([#1556](https://github.com/finos/FDC3/pull/1556))
-* Added `addIntentWithContextListener` to `DesktopAgent` and implemented in `DesktopAgentProxy`
+* Added `addIntentListenerWithContext` to `DesktopAgent` and implemented in `DesktopAgentProxy`. Added handling of optional `contextTypes` to reference implementation
 
 ### Changed