Make header logo link to marketing homepage
Make header logo link to marketing homepage

fixes https://github.com/Pinecast/www/issues/9
Pinecast/pinecast,AlmostBetterNetwork/podmaster-host,AlmostBetterNetwork/pinecast,AlmostBetterNetwork/pinecast,AlmostBetterNetwork/podmaster-host,AlmostBetterNetwork/podmaster-host,AlmostBetterNetwork/pinecast,Pinecast/pinecast