Docs: Update kubernetes.rst [skip ci] (#4049)
Docs: Update kubernetes.rst [skip ci] (#4049)

This PR updates `kubernetes.rst` with minor corrections and highlights two paragraphs that each point to documentation. The previous format was somewhat clunky near two sections, and the highlights seemed reasonable and not too distracting for this particular case.
ContinuumIO/dask,dask/dask,jcrist/dask,jakirkham/dask,jakirkham/dask,ContinuumIO/dask,blaze/dask,mrocklin/dask,jcrist/dask,mrocklin/dask,blaze/dask,dask/dask