Summary:
As discussed in our internal group, think this is a fairly easy error to run into so I added some explanation.
@frantic / @vjeux open to better wording here, but I tried to explain how setting the height directly is discouraged and it's probably better to pipe `flex: 1` all the way down.
I didn't regenerate the website since the script assumes some permissions (push permission to master repo) and has some missing npm dependencies (and after fixing that, still had some obscure error :P )
Closes https://github.com/facebook/react-native/pull/1633
Github Author: Peter Cottle <pcottle@fb.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
a331bb7526