Updated link to docs
Removed guides directory

Guides directory should not exist in two places now that we’ve merged
it into the wp-api.org site. We want to make sure all the contributions
go to one place.
Updated documentation links in main docs folder

Updated links to point to the wp-api.org site.
Merge branch 'master' of https://github.com/pollyplummer/WP-API into docs-updates

Conflicts:
	docs/guides/getting-started.md
Moved routes docs into 1 file
Fixed broken Getting Started guide link
Merge pull request #320 from pollyplummer/doc-updates

Updated link to docs