Update README.md

README.md

@@ -31,7 +31,7 @@ Some Caveats
 
 - Please include the "START" token at the beginning of your prompt to maximize model performances
 - Some chords are not in the vocabulary, but they always have an enharmonic equivalent (There is no C#M but a DbM). If the tokenizer can't parse your chord consider changing it by the enharmonic equivalent
-- We only support M (major), m (minor), 7 (seventh dominant chords), M7 (Major with major seventh), m7 (minor with minor sevenths), m7b5 (half diminished chords), dim (diminished triad), dim7 (diminished seventh chord), aug (augmented chord)
+- We only support M (major), m (minor), 7 (seventh dominant chords), M7 (Major with major seventh), m7 (minor with minor sevenths), m7b5 (half diminished chords), dim (diminished triad), o (also called dim7) (diminished seventh chord), aug (augmented chord)
 - We don't support other chord extensions, if you are interested by an extended model please contact me
 - We support all inversions of the chord using the / notation (eg : CM/E is a C major chord over bass of E). We currently don't support bass note that does not belong to the chord (DM/C will lead to an error, use D7/C)
 - It does not focus on harmonic ryhthm, only chord progression