Fixes Changelog links and versions footer

_fc-versions/chlorine.md

@@ -3,7 +3,7 @@ layout: version
 number: 17
 name: Chlorine
 releases:
-  - number: 0
+  - number: 1
     changelog: 20180502
     categories:
     - name: Frama-C v17.0 Chlorine

_fc-versions/hydrogen.md

@@ -3,7 +3,7 @@ layout: version
 number: 1
 name: Hydrogen
 releases:
-  - number: 3
+  - number: 2
     changelog: 20080502
     categories:
     - name: Frama-C v1.0 Hydrogen

_layouts/version.html

@@ -62,11 +62,11 @@ css: version
               </div>
             </div>
           </div>
-        </div>
-      </div>
-      {% include footer.html %}
+		</div>
+		{% include footer.html %}
 
-      <div class="clear"></div>
+      	<div class="clear"></div>
+      </div>
     </div>
   </div>
 </body>