fix typo

app.py

@@ -20,7 +20,7 @@ def transcribe(audio_file, language: str):
     if orig_freq != freq:
         waveform = AF.resample(waveform, orig_freq, freq)
 
-    return transcriber(waveform, langauge_dict[language]), audio_file.name
+    return transcriber(waveform, language_dict[language]), audio_file.name
 
 if __name__ == "__main__":
     transcriber = Transcribe()