Add note about 2.0 development

README.md

@@ -1,7 +1,7 @@
 rqlite [![Circle CI](https://circleci.com/gh/otoolep/rqlite/tree/master.svg?style=svg)](https://circleci.com/gh/otoolep/rqlite/tree/master) [![GoDoc](https://godoc.org/github.com/otoolep/rqlite?status.png)](https://godoc.org/github.com/otoolep/rqlite)
 ======
 
-*Detailed background on rqlite can be found on [this blog post](http://www.philipotoole.com/replicating-sqlite-using-raft-consensus).*
+*Detailed background on rqlite can be found on [this blog post](http://www.philipotoole.com/replicating-sqlite-using-raft-consensus). Note that master represents 2.0 development, with a new API. If you want to work with 1.0 rqlite, you can find it [here](https://github.com/otoolep/rqlite/releases/tag/v1.0).*
 
 *rqlite* is a distributed system that provides a replicated SQLite database. rqlite is written in [Go](http://golang.org/) and uses [Raft](http://raftconsensus.github.io/) to achieve consensus across all the instances of the SQLite databases. rqlite ensures that every change made to the database is made to a majority of underlying SQLite files, or none-at-all.