Revert "Add _site folder in"

This reverts commit cccb5ff551590e2d654e5eaabbb7614608e12fbb.
Schema.org organisation
Add Rory's bio
Add Sheldon to teachers
Merge branch 'gh-pages' of github.com:RailsBridge-CapeTown/railsbridgecapetown.org into gh-pages
Copy edits on index.html
Update Pawel's bio
Merge branch 'master' into gh-pages
Bio for sheldonh
Add Steve links
Merge pull request #2 from sheldonh/sheldonh-bio

Bio for sheldonh