DOC: update Readme recommended tags for new contributors#20992

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TomAugspurger merged 2 commits intopandas-dev:masterfrom

mvinoba:readme-fix

May 9, 2018

Commits on May 9, 2018

DOC: Change recommended tag for new contributors in main README.md (#20982)
mvinoba
committed
DOC: Change recommended tag for new contributors in docs (#20982)
mvinoba
committed