fix(jms): replace filename with code

Author: yamahito

src/main/xar-resources/data/jmx/jmx.xml

@@ -160,7 +160,7 @@
                         <para>the client accesses the API on localhost</para>
                     </listitem>
                     <listitem>
-                        <para>a valid token is provided when accessing the API from a remote IP address. A file containing this token and an example of its use can be found in the eXist data directory at <filename>$(EXIST_HOME)/data/jmxservlet.token</filename>.</para>
+                        <para>a valid token is provided when accessing the API from a remote IP address. A file containing this token and an example of its use can be found in the eXist data directory at <code>$(EXIST_HOME)/data/jmxservlet.token</code>.</para>
                     </listitem>
                 </itemizedlist>
             </note>