Merge pull request #34 from OAGr/master

Fixed text highlighting bug, homepage link (attempt), error page text
Fixed issue with displaying error for new member survey
Merge branch 'master' of heroku.com:eighty-thousand-hours
Merge pull request #35 from OAGr/master

Created page to describe content, changed error message.
Merge pull request #37 from OAGr/master

Minor changes to schema.markdown to add bullets