improve text syntax (#2556)
improve text syntax (#2556)

Summary:
**Summary**

improve text syntax

Pull Request resolved: https://github.com/facebook/draft-js/pull/2556

Reviewed By: claudiopro

Differential Revision: D23190938

Pulled By: mrkev

fbshipit-source-id: 6a1e1f2b640ce08e7a86ea352c10959d8d7e783a

facebook/draft-js