Add rudimentary docstrings
Add rudimentary docstrings

PhE/dask,chrisbarber/dask,mraspaud/dask,vikhyat/dask,mrocklin/dask,simudream/dask,jayhetee/dask,gameduell/dask,wiso/dask,jcrist/dask,jakirkham/dask,blaze/dask,mikegraham/dask,mrocklin/dask,cpcloud/dask,jcrist/dask,ContinuumIO/dask,ssanderson/dask,clarkfitzg/dask,dask/dask,pombredanne/dask,clarkfitzg/dask,mraspaud/dask,ssanderson/dask,simudream/dask,jayhetee/dask,PhE/dask,dask/dask,blaze/dask,pombredanne/dask,vikhyat/dask,jakirkham/dask,ContinuumIO/dask,wiso/dask,cowlicks/dask