Update README with docs

README.md

@@ -25,17 +25,20 @@ In Python:
 from setclass import SetClass
 sc = SetClass(0, 3, 5, 6, 7, 10, 11)  # Forte 7-20; pitch classes as integers 0-11
 sc.versions
-sc.brightest_form
-sc.darkest_form
+sc.rahn_normal_form
+sc.forte_name
 sc.duodecimal_notation  # SetClass[0,3,5,6,7,T,E]
 ```
 
-Proper library documentation to come soon with Sphinx.
+Documentation is generated from the doc comments with Sphinx, and in the meantime is available [here](https://git.jon.geek.nz/docs/public/setclass/setclass.html):
 
+```
+make -C docs html
+```
 
 ## TODO
 
-- Documentation (Sphinx)
+- <s>Documentation (Sphinx)</s>
 - Interoperate with music21 objects
 - Generate MIDI files
 - Generate LilyPond files for set pitches