pastream, soundfile, sounddevice, and cffi (as well portaudio/libsndfile) no longer need to be installed in order to generate documentation
moved docs dependencies into docs/requirements.txt file. This seems clearer
than the poorly documentated pip install .[docs]; moreover, installing
from a requirements file doesn't try to install pastream itself.
pastream, soundfile, sounddevice, and cffi (as well portaudio/libsndfile) no longer need to be installed in order to generate documentation
moved docs dependencies into docs/requirements.txt file. This seems clearer than the poorly documentated
pip install .[docs]; moreover, installing from a requirements file doesn't try to install pastream itself.updated README reflecting above changes