Add section for HBase following comments

Signed-off-by: Scott McQuillan <[email protected]>

Author: smcquillan

docs/migrating.txt

@@ -24,7 +24,19 @@ graph.titan-version=1.0.0
 storage.cassandra.keyspace=titan
 ----
 
-These configuration options allow JanusGraph to read data from a Cassandra database which had previously been created by Titan.  However, once JanusGraph writes back to that database it will register additional serializers which mean that it will no longer be compatible with Titan. Users are therefore encouraged to backup the data in Casssandra before attempting to use it with the JanusGraph release. 
+These configuration options allow JanusGraph to read data from a Cassandra database which had previously been created by Titan. However, once JanusGraph writes back to that database it will register additional serializers which mean that it will no longer be compatible with Titan. Users are therefore encouraged to backup the data in Casssandra before attempting to use it with the JanusGraph release. 
+
+=== HBase
+
+The name of the table used by Titan was `titan` and in order to reuse that existing table the `storage.hbase.table` property needs to be set accordingly.
+
+[source, properties]
+----
+graph.titan-version=1.0.0
+storage.hbase.table=titan
+----
+
+These configuration options allow JanusGraph to read data from an HBase database which had previously been created by Titan. However, once JanusGraph writes back to that database it will register additional serializers which mean that it will no longer be compatible with Titan. Users are therefore encouraged to backup the data in HBase before attempting to use it with the JanusGraph release. 
 
 === BerkeleyDB