Hello,
First of all, sorry in advance for my english.
I've read something about this but it doesn't solve my doubt.
The problem of our team is that we can't to deploy a feature just when we have done it so what I wanted is to have a column "Ready to deploy" that it would affect to the burndown chart in the same way that the column "Done". If we don't do in that way and we deploy the last day of the sprint you can imagine how looks the burndown chart.
I hope your answers. Thanks!!!