Fix spelling error
Fixing markdown formatting in README.

Because these are nested in a list, Markdown doesn't recognize them as code. :(
Update README.md

Fix code indentation at `config.ru` section
Added ruby version check to setup instructions. Added postgres setup instructions to getting started.
Listing aspirations, because who among us does not dare to dream?
Updated instructions for setting DATABASE_URL using a .env file.
Fix a typo: "Delege" -> "Delete"
Fix a typo: "integratoin" -> "integration"
remove double sinatra helpers call
Merge pull request #19 from mkonicek/patch-1

Fix two small typos in README
Merge pull request #15 from mtitolo/readme_ruby_version

Added ruby version check and postgres setup
Merge pull request #8 from zeppelin/patch-1

Update README.md
Merge pull request #5 from mtitolo/master

Link to Orbiter
Merge pull request #1 from czarneckid/patch-1

Fix spelling error
Merge branch 'patch-1' of git://github.com/steveklabnik/helios into steveklabnik-patch-1
Merge branch 'steveklabnik-patch-1'

Conflicts:
	README.md
Added -h flag to createdb call in README.