Fix the site's source repository link.

Author: Gary Gregory

src/site/xdoc/index.xml

@@ -86,7 +86,7 @@ usage: ls
         <li><a href="javadocs/api-1.0/index.html">CLI 1.0</a></li>
       </ul>
       <p>
-        The <a href="source-repository.html">git repository</a> can be
+        The <a href="scm.html">source repository</a> can be
         <a href="https://git-wip-us.apache.org/repos/asf?p=commons-cli.git">browsed</a>.
       </p>
     </section>

src/site/xdoc/mail-lists.xml

@@ -149,7 +149,7 @@ limitations under the License.
           <td>
             <strong>Commons Commits List</strong>
             <br /><br />
-            Only for e-mails automatically generated by the <a href="source-repository.html">source control</a> sytem.
+            Only for e-mails automatically generated by the <a href="scm.html">source control</a> sytem.
             <br /><br />
           </td>
           <td><a href="mailto:commits-subscribe@commons.apache.org">Subscribe</a></td>