update CHANGELOG

CHANGELOG.md

@@ -36,6 +36,10 @@ stt = DeepgramSTTService(..., live_options=LiveOptions(model="nova-2-general"))
 - Fixed a `STTMuteFilter` issue that would not mute user audio frames causing
   transcriptions to be generated by the STT service.
 
+### Other
+
+- Added Gemini support to `examples/phone-chatbot`.
+
 ## [0.0.57] - 2025-02-14
 
 ### Added