Add README improvements.#16435

Merged

jorisvandenbossche merged 7 commits intopandas-dev:masterfrom

steven-cutting:readmefix

May 23, 2017

Commits on May 22, 2017

Add README improvements.
Steven Cutting
committed
Add README improvements.
Steven Cutting
committed
Add README improvements.
Steven Cutting
committed
Add README improvements.
Steven Cutting
committed
Add README improvements.
Steven Cutting
committed

Commits on May 23, 2017