add to index

Author: jordan-smith721

source/index.txt

@@ -29,6 +29,7 @@ MongoDB Java Reactive Streams Documentation
    /indexes
    /aggregation
    /secure-your-data
+   /read-write-configuration
    /logging
    /monitoring
    /validate-signatures
@@ -91,6 +92,12 @@ Secure Your Data
 Learn about ways you can authenticate your application and encrypt your data in
 the :ref:`java-rs-security` section.
 
+Configure Operations on Replica Sets
+------------------------------------
+
+Learn how to configure read and write operations on a replica set in the
+:ref:`java-rs-read-write-config` section.
+
 What's New
 ----------