Added a note about custom forests

Author: Rob Rudin

examples/custom-forests-and-replicas-project/README.md

@@ -1,6 +1,5 @@
 This project shows an example of configuring any forests and replicas you'd like for a database. See
 the forests/custom-forest-example-content directory.
 
-Note that you'll need to run this against a cluster with at least two nodes (failover requires three nodes, but you
-only need two nodes to see how ml-gradle will create replica forests).
- 
+ ml-gradle 2.7.0 provided a fix where prior to that version, default forests were still created for a database. In 2.7.0,
+ ml-gradle is smart enough not to create default forests if custom forests have been specified.