move build status image to status section in readme
move build status image to status section in readme

tobiasbayer/lambdacd,tobiasbayer/lambdacd,cz8s/lambdacd,cz8s/lambdacd,flosell/lambdacd,flosell/lambdacd,matthiasn/lambdacd,matthiasn/lambdacd,matthiasn/lambdacd,cz8s/lambdacd,tobiasbayer/lambdacd,flosell/lambdacd