[Website] Add "- React Native" to page titles

[sophiebits]

If you search on Google for accessibility, the React Native page just says "Accessibility - Facebook Code":

This is because the document title is just "Accessibility". Let's add "- React Native" to all our page titles (except the homepage itself, which already has it) which will make the results easier to distinguish.

[gabrielglvr]

I want to work on this but i thing that i'm not understand as well, is just about change the doc .md file title or .html pages? I'm not found the html pages in react-native repository.

[sophiebits]

This is just about changing the .html files, which are autogenerated from .md. Try looking in website/layout/ for clues.

[gabrielglvr]

Thank you for help ! I made a pr =D

[elicwhite]

The fix landed. Thanks!