Since the 0.7 line (snapshots and now the official release), the README that Chestnut generates contains a mention at the bottom like
Created with [Chestnut](http://plexus.github.io/chestnut/) 0.7.0-SNAPSHOT (ecadc3ce).
There are two reasons for this. The first is that when people report issues, it’s possible to see exactly what version they used. And unless it’s a stable release (not a snapshot), the git commit id is included to make double sure.
The other reason is this way it’s easy to trace down publicly available projects, such as with this search on github. I find that when starting out few things are as useful as looking at real code, so this will be very handy to find some good examples to point people to.