Weijia Wang d0f6a1a13e Imporve docs for the prop "navigationBar" in Navigator
Summary:The doc of props "navigationBar" in Navigator is not  detailed enough. I make an improvement to it.
Closes https://github.com/facebook/react-native/pull/6615

Differential Revision: D3102065

fb-gh-sync-id: da96e3c422e053d0a8203bbd160ea10ed590878a
fbshipit-source-id: da96e3c422e053d0a8203bbd160ea10ed590878a
2016-03-26 07:01:23 -07:00
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2015-07-24 13:16:25 -08:00