Doc tile (#2155)
Doc tile (#2155)

Make sure Sphinx autodocs `tile`.
jakirkham/dask,jcrist/dask,cpcloud/dask,mrocklin/dask,dask/dask,ContinuumIO/dask,jakirkham/dask,mraspaud/dask,mrocklin/dask,jcrist/dask,mraspaud/dask,ContinuumIO/dask,dask/dask,blaze/dask,blaze/dask