Merge branch 'develop'
Update cdnjs link
Remove duplicated info on indexes property
Update cdnjs url
Fix typo in README
Merge pull request #40 from clundie/bug/readme-typo

Fix typo in README
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Merge pull request #50 from Mithgol/patch-1

use SVG to display npm package's version
Remove Bitdeli tracking
Fix typo in readme
Merge pull request #53 from performance-content-group/doc-fix

Fix typo in readme
Resolve merge conflicts in README
Fix test runnerHTML markup