Summary:
This simplifies the Quick Start section of the React Native documentation into
two pages. A Getting Started and a Tutorial.
The Getting Started page uses some CSS and Javascript magic (thanks vjeux for
the initial infra for this!!) to allow selection between platforms and have
instructions for Getting Started with React Native be shown according to the
selection -- all within the same page, realtime. A much cleaner interface.
I have made a pretty large presentation and information overhaul for each
platform as well. For example, requiring Android Studio for Android
development to make the Android SDK and build tools installation easier.
I added more screenshots to the Android sections since they are more complicated
than the more straightforward iOS. Screenshots for Android for Windows, Linux and
iOS are available now.
Some of the other pages such as `GettingStartedOnLinux` are now obsolete and deleted.
** Test Plan **
Tested locally and navigation works.
Closes https://github.com/facebook/react-native/pull/7418
Differential Revision: D3268621
Pulled By: vjeux
fb-gh-sync-id: 65f9181c9f959fadeffd254efddc5b64816eb1f4
fbshipit-source-id: 65f9181c9f959fadeffd254efddc5b64816eb1f4