Improve manual (and README)

[geraldus]

I think we need to improve current documentation. User should have prominently displayed comprehensive brief overview of all major features of haskell mode somewhere , there should be covered following issues:

• Minimal setup: how to get and what features it gives
• Interactive and Inferior modes should be mentioned right after that, there should be short description (explaining what is the difference between them?) followed by further instructions links for both.
• Auto-completions and how to improve them
• Each section should mention all optional external tools that could improve user experience (e.g. hasktags, stylish-haskell, hoogle)
  I think we need to mention `(add-hook 'haskell-mode-hook …) at least.
• Replace link the online haskell-mode manual to HTML manual page in README's Advanced configuration section.

What else?

It would be great to have a native English volunteer for documentation updates.

[geraldus]

I have updated this list a bit

[gracjan]

I'd direct people from README to the manual, or actually even better to the (not yet existing) web page here http://haskell.github.io/haskell-mode/.

[gracjan]

We know that we need to do documentation, I do not see how this issue improves our knowledge.