fix minor typos (it's vs. its)
http.Handlers is plural not possessive :)
Some small typo fixes
additional wording fixes/updates
capitalize Heroku everywhere
Merge pull request #11 from srt32/st-edits

Some small typo fixes
Merge pull request #10 from draaglom/patch-1

http.Handlers is plural not possessive :)
Merge pull request #9 from zackse/master

fix minor typos (it's vs. its)