Update README.md

README.md

@@ -39,6 +39,8 @@ _This demonstration shows all 3 nodes running on the same host. In reality you p
 
 With just these few steps you've now got a fault-tolerant, distributed relational database. For full details on creating and managing real clusters check out [this documentation](https://github.com/rqlite/rqlite/blob/master/doc/CLUSTER_MGMT.md).
 
+There is also a rqlite _Discovery Service_, allowing nodes to automatically connect and form a cluster. This can be much more convenient, allowing clusters to be dynamically created. Check out [the documentation](https://github.com/rqlite/rqlite/blob/master/doc/DISCOVERY.md) for more details.
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 ### Inserting records
 Let's insert some records via the [rqlite CLI](https://github.com/rqlite/rqlite/blob/master/doc/CLI.md), using standard SQLite commands. Once inserted, these records will be replicated across the cluster, in a durable and fault-tolerant manner. Your 3-node cluster can suffer the failure of a single node without any loss of functionality.
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