Providing version for Maven correspondence

Doc/Sdi/docker.xml

@@ -31,7 +31,7 @@
   <figure xml:id="sdiDocker_Hub">
     <title>Docker hub</title>
 
-    <para>Repository hosting publicly available Docker images: </para>
+    <para>Repository hosting publicly available Docker images:</para>
 
     <para><uri
     xlink:href="https://hub.docker.com/explore">https://hub.docker.com/explore</uri></para>
@@ -175,9 +175,9 @@ Status: Downloaded newer image for nextcloud:13.0.2</screen>
     <title>Maven ringing a bell?</title>
 
     <programlisting language="xml">&lt;dependency&gt;
-    &lt;groupId&gt;junit&lt;/groupId&gt; &lt;!-- <emphasis role="red">wonderfall</emphasis> --&gt;
-    &lt;artifactId&gt;junit&lt;/artifactId&gt; &lt;!-- <emphasis role="red">nextcloud</emphasis> --&gt;
-    &lt;version&gt;4.12&lt;/version&gt;
+  &lt;groupId&gt;junit&lt;/groupId&gt;           &lt;!-- <emphasis role="red">wonderfall</emphasis> --&gt;
+  &lt;artifactId&gt;junit&lt;/artifactId&gt;     &lt;!-- <emphasis role="red">nextcloud</emphasis> --&gt;
+  &lt;version&gt;4.12&lt;/version&gt;            &lt;!-- <emphasis role="red">13.0.2</emphasis> --&gt;
 &lt;/dependency&gt;</programlisting>
   </figure>