Update README.md (typo fix)

I don't think Emacs is quite that far ahead of the curve.
Merge pull request #22 from nbouscal/patch-1

Update README.md (typo fix)
Update README to reflect flycheck changes

flycheck-hdevtools is now a separate Emacs package.
Merge pull request #26 from purcell/patch-2

Update README to reflect flycheck changes
Updates for changes in GHC API. Fixes #24.

Updates to GHC API Pretty.showDoc
Changed showDoc mode 1 to showDoc mode 0
changes for GHC API 7.8.3
Merge remote-tracking branch 'schell/ghc7.7'
Merge remote-tracking branch 'schell/ghc7.8.3'