Merge pull request #4 from guilhermef/master

Initialize can parse html content instead of downloading if it's already available
Version bump to 0.2.3
Regenerate gemspec for version 0.2.3
Update and rename README.rdoc to README.md
Update README.md
Update README.md
Merge pull request #5 from farleyknight/master

Update the README to use Markdown, which has syntax highlighting.
Using page uri when checking images path
fixing uri when image error