STW: ability to subscribe to community mails (#760)

contribute/spreadtheword.en.xhtml

@@ -237,11 +237,10 @@
           <div>
             <input type="text" name="address" placeholder="Which address shall be used?" size="20" class="special" />
           </div>
-          <!-- hide newsletter field for once as it requires some extra backend work 
           <div>
             <span class="formlabel">Receive the latest Free Software news:</span>
-            <label for="wantinfo"><input name="wantinfo" id="wantinfo" type="checkbox" />I want to receive occasional information about FSFE's activities (less than one email a week on average)</label> 
-          </div> -->
+            <label for="subcd"><input name="subcd" id="subcd" value="y" type="checkbox" />I want to receive occasional information about the FSFE's activities</label>
+          </div>
           <div>
             <span class="formlabel">Support our work with a voluntary donation*:</span>
             <input type="number" name="donate" value="" min="0" step="5" placeholder="0 or ≥ 10 €" required="required" />€