add swap link
omit needless words, again
minor updates
move requirements into a table for EZ readin'
some &mdash; lovin'
Fix typo of 'b' at the end of a heading in README
Merge pull request #2042 from Nitrodist/fix_heading_typo_in_readme

Fix typo of 'b' at the end of a heading in README
Merge branch 'master' of git://github.com/discourse/discourse