Summary:This puts the images inside of the blog folder in the output so we can safely copy them over. And moves the images in /blog/img/ in the source control so it's easier to discover (instead of having to search many levels deep).
Should make the website work!
Closes https://github.com/facebook/react-native/pull/6659
Differential Revision: D3098308
Pulled By: vjeux
fb-gh-sync-id: 99477e27843dd6c88aa854028944f2f0b672db1f
fbshipit-source-id: 99477e27843dd6c88aa854028944f2f0b672db1f
Christopher Chedeau