README.md : More updates.

README.md

 
 _libcm_ is a C application development framework with an emphasis on audio signal processing.
 
-There's a lot that could be said about this framework.  The first is that it is quite large.
-More than 150k lines at last count. The best way to get a sense of what is in it
+Some of its features are:
+
+* entirely written in C 
+* very few external dependencies (ALSA,FFTW,Atlas)
+* a real-time audio/MIDI system
+* a dataflow system
+* many audio processing algorithms implemented in plain C.
+* file readers and writers for WAV,AIFF,MIDI,CSV,MusicXML,XML among others
+
+_libcm_ is big. The best way to get a sense of what is in it
 is to [browse the documentation files here](https://currawongproject.org/static/doc/libcm/libcm.html).