Reference to server_setup.sh, step numbers is outdated

journalist's hidden service URL is now referred to as "Document Interface URL"
Word correction

Grammar :P http://english.stackexchange.com/questions/35418/past-tense-of-to-output-output-or-outputted
Revert typo
Merge pull request #226 from ageis/patch-4

Reference to server_setup.sh, step numbers is outdated