diff --git a/README.md b/README.md
index 955ef44..4079ae7 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,6 @@ audio_decode.ffmpeg()
 
 ---
 
-"""
 
 An audio decode operator takes an audio file path as input. It decodes the audio back to audio frames.
 
@@ -48,7 +47,6 @@ Audio file path.
 
 An generator over audio frames with type `towhee.types.AudioFrame`.
 
-"""