Update README.md

README.md

@@ -256,6 +256,8 @@ class LiveCCDemoInfer:
           last_video_pts_index: int, last processed video frame index
           video_pts: np.ndarray, video pts
           last_history: list, last processed history
+          past_key_values: llm past_key_values
+          past_ids: past generated ids
       """
       video_path = state.get('video_path', None)
       conversation = []