Refactor header.html's properties.
Use double quotes.
Update README.md.

* use a code block instead of individual code commands
* remove a ul since it only has one list item
Merge pull request #150 from XhmikosR/patch-1

Patch 1
Missing question mark on question in intro

- Sentence for "list of licenses common for specific communities"
  reads a little easier as:

   "list of licenses common to specific communities"

- Markdown with uppercase first letter, as a type
- Removed "I counted" as the repo voice otherwise
  doesn't come from a single person
Merge pull request #156 from randomecho/readme-question-mark-voice

Missing question mark on question in intro
Use a CSS sprite for the homepage images.

-2 http requests, -0.5KB.