1. Add Windows support in README.
2. Add a useful links section in README.
3. Set line length to 80 characters in README; if exceeded,
   will wrap to a new line. This won't affect the presentation
   for the markdown.
4. Include the content of Chromium.License in License file.

Change-Id: I67f6d5935b46bc05fbcbf0a608aca9b0ae167173