update walkthrough, use public api functions instead of internal ones (#7)
update walkthrough, use public api functions instead of internal ones (#7)

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