Fix hidden build error

xml/ha_drbd.xml

@@ -173,27 +173,26 @@ NAME       SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE
   <note>
    <title>Adjustments needed</title>
    <para>
-    The following procedure uses the server names &node1; and &node2;,
+    The following procedures use the server names &node1; and &node2;,
     and the DRBD resource name <literal>r0</literal>. It sets up
     &node1; as the primary node and <filename>/dev/disk/by-id/example-disk1</filename> for
     storage. Make sure to modify the instructions to use your own nodes and
     file names.
    </para>
+   <para>
+    The following procedures assume that the cluster nodes use the TCP port <literal>7788</literal>.
+    Make sure this port is open in your firewall.
+  </para>
   </note>
 
   <remark>toms 2014-02-13: phil: perhaps the example should be changed to
     use an LV instead;band eg. "nfs" instead of "r0".</remark>
 
   <para>
-   The following sections assume that the cluster nodes use the TCP port <literal>7788</literal>.
-   Make sure this port is open in your firewall.
+   To set up DRBD, perform the following procedures:
   </para>
 
   <orderedlist>
-    <title>Procedure overview</title>
-    <para>
-      To set up DRBD, perform the following procedures:
-    </para>
     <listitem>
       <para>
         <xref linkend="sec-ha-drbd-prepare"/>