docs: Adding documentation item about ndn::cs::Nocache content store
diff --git a/docs/source/cs.rst b/docs/source/cs.rst
index ab5116b..6098337 100644
--- a/docs/source/cs.rst
+++ b/docs/source/cs.rst
@@ -64,6 +64,18 @@
 
     If ``MaxSize`` is set to 0, then no limit on ContentStore will be enforced
 
+Nocache
+~~~~~~~
+
+:ndnsim:`Trivial implementation <ndn::cs::Nocache>` of the ContentStore that does not really do any caching.
+
+Usage example:
+
+      .. code-block:: c++
+
+         ndnHelper.SetContentStore ("ns3::ndn::cs::Nocache");
+	 ...
+	 ndnHelper.Install (nodes);
 
 Content stores with entry lifetime tracking
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^