modules/msrp: Updated documentation

modules/msrp/README

@@ -158,6 +158,9 @@ Chapter 1. Admin Guide
    The following modules must be loaded before this module:
      * None.
 
+   The following modules are required to make proper use of this module:
+     * tls.
+
 2.2. External Libraries or Applications
 
    The following libraries or applications must be installed before

modules/msrp/doc/msrp_admin.xml

@@ -65,6 +65,17 @@
 			</listitem>
 			</itemizedlist>
 		</para>
+		<para>
+		The following modules are required to make proper use of this
+		module:
+			<itemizedlist>
+			<listitem>
+			<para>
+				<emphasis>tls</emphasis>.
+			</para>
+			</listitem>
+			</itemizedlist>
+		</para>
 	</section>
 	<section>
 		<title>External Libraries or Applications</title>