Changed `map_to_wav` name to `notes_to_midi`

README.md

@@ -129,10 +129,10 @@ Parameters
 Returns:
 * ``display.Audio``: Song as an object allowing for display.
 
-### map_to_wav
+### notes_to_midi
 
 ```python
-def map_to_wav(song_map: pd.DataFrame, out_file: str, velocity: int=50) -> pretty_midi.PrettyMIDI:
+def notes_to_midi(song_map: pd.DataFrame, out_file: str, velocity: int=50) -> pretty_midi.PrettyMIDI:
 ```
 Convert "song map" to midi file (reverse process with respect to 
 midi_to_notes) and (optionally) save it, generating a PrettyMidi object in the process.