Fixing issue #2982 (#5099)
Fixing issue #2982 (#5099)

* fix doc issue 2982

* fix doc issue 2982

* Update dask/dataframe/core.py

Co-Authored-By: James Bourbeau <d47a96e8b557881d8d6a5263afaffb9cba464dc8@users.noreply.github.com>

* Update dask/dataframe/core.py

Co-Authored-By: James Bourbeau <d47a96e8b557881d8d6a5263afaffb9cba464dc8@users.noreply.github.com>

ContinuumIO/dask,jakirkham/dask,blaze/dask,mrocklin/dask,ContinuumIO/dask,jakirkham/dask,dask/dask,dask/dask,mrocklin/dask,blaze/dask