Adds some more informations to the about-page

This adresses Issue php-ug#55

Author: heiglandreas

src/module/Phpug/view/phpug/index/about.phtml

@@ -57,5 +57,46 @@ $this->headTitle('About');
                 you'd better try to find a sponsor for covering the costs.
             Otherwise it seems more like a conference, doesn't it?</p>
         </dd>
+        <dt>How does it work?</dt>
+        <dd>
+            <p>
+                Whoever knows of a usergroup can promote it. You have to log in with
+            a twitter-account and are then able to promote a usergroup. We will
+            then check some basic stuff and might get in contact with the group
+            to clear issues and as soon as everything is cleared the group will
+            show up on the map.
+                </p><p>
+                As soon as the group appears on the map it is also available via the API
+                </p>
+            <p>Users whos twitter-account has been associated with a group can
+                - after logging in - edit their groups information. In the groups
+                information-popup there is a little edit-icon on the right hand
+                side of the contact-informations. That brings you to the edit-screen.
+                So <strong>you</strong> are in charge of your groups information</p>
+            </dd>
+        <dt>
+            Do we need an iCalendar-File?
+        </dt>
+        <dd>
+            <p>Short answer: No. You do not need one. But you should have one</p>
+            <p>
+                We use a provided iCalendar-File to retrieve your groups next meeting
+                so we can display that in your groups information popup. So everyone
+                interested in your group can see right from the start when and where
+                your next meeting will be. No digging for new users where to find
+                that information, it's right there.
+            </p><p>
+                As the API also provides the link to the iCalendar-file all sites using
+                it might also want to display your next event beneath your username.
+                This is already in progress on <a href="http://php.net/ug.php">php.net</a>.
+            </p><p>
+                When your groups does not have an iCalendar-File we are not able to
+                provide that information, but that's it.
+            </p><p>
+                So even if you are meeting on a regular basis (say every last thursday
+                of every second month) you should create an iCalendar-File with that
+                one recurring event to give people an idea of when you are meeting.
+            </p>
+        </dd>
     </dl>
 </section>