Connection settings: update per review 2.1

Author: andreyaksenov

doc/concepts/configuration/configuration_connections.rst

@@ -4,11 +4,11 @@ Connections
 ===========
 
 To set up a Tarantool cluster, you need to enable communication between its instances, regardless of whether they running on one or different hosts.
-This requires :ref:`configuring <configuration>` connection settings that might include:
+This requires :ref:`configuring <configuration>` connection settings that include:
 
 -   One or several URIs used to listen for incoming requests.
--   An URI used to advertise an instance to other cluster members.
--   SSL settings used to secure connections.
+-   An URI used to advertise an instance to other cluster members. This URI lets other cluster members know how to connect to the current Tarantool instance.
+-   (Optional) SSL settings used to secure connections between instances.
 
 Configuring connection settings is also required to enable communication of a Tarantool cluster to external systems.
 For example, this might be administering cluster members using :ref:`tt <tt-cli>`, managing clusters using :ref:`Tarantool Cluster Manager <tcm>`, or using :ref:`connectors <index-box_connectors>` for different languages.