Update README.rst
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@@ -97,6 +97,13 @@ independently of Patroni.
.. _running_configuring:
+Planning the Number of PostgreSQL Nodes
+---------------------------------------
+
+Patroni/PostgreSQL nodes are decoupled from DCS nodes (except when Patroni implements RAFT on its own) and therefore
+there is no requirement on the minimal number of nodes. Running a cluster consisting of one master and one standby is
+perfectly fine. You can add more standby nodes later.
+
Running and Configuring
-----------------------
