There are a few different solutions for providing this kind of functionality, if you need different buttons, deeper explanations or have more than a 4-5 points to make then this library probably isn't appropriate!
And Crumble is open-source! Which is awesome!
Great job, I was looking for something exactly like this - simple. Will try tomorrow
also like something that was posted on HN not long ago, a company from Ontario, Canada who built software to do this but the name of their app eludes me.