Docs: Update array-overlap.rst [skip ci] (#4175)
Docs: Update array-overlap.rst [skip ci] (#4175)

This PR updates `array-overlap.rst` with a few punctuation improvements (minor stuff only).
dask/dask,mrocklin/dask,jakirkham/dask,jcrist/dask,blaze/dask,jcrist/dask,ContinuumIO/dask,blaze/dask,mrocklin/dask,dask/dask,ContinuumIO/dask,jakirkham/dask