docs: add protocols to rich and zones

Fixes: firewalld#991

doc/xml/firewalld.richlanguage.xml

@@ -157,11 +157,12 @@ service name="service name"
       <title>Port</title>
       <para>
 	<programlisting>
-port port="port value" protocol="tcp|udp"
+port port="port value" protocol="tcp|udp|sctp|dccp"
 	</programlisting>
       </para>
       <para>
-	The port <replaceable>port value</replaceable> can either be a single port number <replaceable>portid</replaceable> or a port range <replaceable>portid</replaceable>-<replaceable>portid</replaceable>. The protocol can either be <replaceable>tcp</replaceable> or <replaceable>udp</replaceable>.
+	The port <replaceable>port value</replaceable> can either be a single port number <replaceable>portid</replaceable> or a port range <replaceable>portid</replaceable>-<replaceable>portid</replaceable>. 
+      The protocol can either be <literal>tcp</literal>, <literal>udp</literal>, <literal>sctp</literal> or <literal>dccp</literal>.
       </para>
     </refsect2>
 
@@ -242,14 +243,15 @@ icmp-type name="icmptype name"
       <title>Forward-Port</title>
       <para>
 	<programlisting>
-forward-port port="port value" protocol="tcp|udp" to-port="port value" to-addr="address"
+forward-port port="port value" protocol="tcp|udp|sctp|dccp" to-port="port value" to-addr="address"
 	</programlisting>
       </para>
       <para>
 	Forward port/packets from local port value with protocol "tcp" or "udp" to either another port locally or to another machine or to another port on another machine.
       </para>
       <para>
-	The port value can either be a single port number or a port range <replaceable>portid-portid</replaceable>. The <option>to-addr</option> is an IP address.
+	The port value can either be a single port number or a port range <replaceable>portid-portid</replaceable>. The <option>to-addr</option> is an IP address. 
+      The protocol can either be <literal>tcp</literal>, <literal>udp</literal>, <literal>sctp</literal> or <literal>dccp</literal>.
       </para>
       <para>
 	It is not allowed to specify an action here. forward-port uses the action accept internally.
@@ -263,11 +265,12 @@ forward-port port="port value" protocol="tcp|udp" to-port="port value" to-addr="
       <title>Source-Port</title>
       <para>
 	<programlisting>
-source-port port="port value" protocol="tcp|udp"
+source-port port="port value" protocol="tcp|udp|sctp|dccp"
 	</programlisting>
       </para>
       <para>
-	The source-port <replaceable>port value</replaceable> can either be a single port number <replaceable>portid</replaceable> or a port range <replaceable>portid</replaceable>-<replaceable>portid</replaceable>. The protocol can either be <replaceable>tcp</replaceable> or <replaceable>udp</replaceable>.
+	The source-port <replaceable>port value</replaceable> can either be a single port number <replaceable>portid</replaceable> or a port range <replaceable>portid</replaceable>-<replaceable>portid</replaceable>. 
+      The protocol can either be <literal>tcp</literal>, <literal>udp</literal>, <literal>sctp</literal> or <literal>dccp</literal>.
       </para>
     </refsect2>
 

doc/xml/firewalld.zones.xml

@@ -76,7 +76,7 @@
       <refsect3>
 	<title>Ports and protocols</title>
 	<para>
-	  Definition of <literal>tcp</literal> or <literal>udp</literal> ports, where ports can be a single port or a port range.
+	  Definition of <literal>tcp</literal>, <literal>udp</literal>, <literal>sctp</literal> or <literal>dccp</literal> ports, where ports can be a single port or a port range.
 	</para>
       </refsect3>