Fix url to /static/
Fix url to /static/

doing static/ makes it /static/static

Failed to load resource: the server responded with a status of 404 () 

https://review.typo3.org/static/static/footer-logo.b9f2ba66aab906975d481c42d4.cache.gif
TYPO3-cookbooks/site-reviewtypo3org,TYPO3-cookbooks/site-reviewtypo3org,TYPO3-cookbooks/site-reviewtypo3org,TYPO3-cookbooks/site-reviewtypo3org