DOC: fix return type of str.extract#22562

Merged

WillAyd merged 2 commits intopandas-dev:masterfrom

zhujun98:return_doc_for_str_extract

Sep 3, 2018

Commits on Sep 1, 2018

DOC: fix return type of str.extract
zhujun98
committed

Commits on Sep 2, 2018

DOC: a few minor improvements for str.extract
zhujun98
committed