Fix missing links in the about page

www/templates/maposmatic/about.html

@@ -51,14 +51,17 @@ licensed under the AGPLv3.{%endblocktrans%}</p>
 <p>{%blocktrans%}On our server, we run a PostgreSQL server, with the
 PostGIS extension. In this PostgreSQL server, we have loaded the full
 OpenStreetMap data for the metropolitan France, using the <a
-href="">dumps</a> and the <a href="">osm2pgsql</a>
+href="http://download.geofabrik.de/osm/europe/">dumps</a> from
+Geofabrik and the <a
+href="http://wiki.openstreetmap.org/wiki/Osm2pgsql">osm2pgsql</a>
 tool.{%endblocktrans%}</p>
 
 <p>{%blocktrans%}For the map rendering, we use the famous <a
-href="">Mapnik</a> with the OpenStreetMap stylesheet available <a
-href="">in OpenStreetMap Subversion repository</a>. Using Mapnik and
-Cairo, we built <i>OCitySMap</i>, a Python module that
-:{%endblocktrans%}</p>
+href="http://www.mapnik.org">Mapnik</a> with the OpenStreetMap
+stylesheet available <a
+href="http://svn.openstreetmap.org/applications/rendering/mapnik">in
+OpenStreetMap Subversion repository</a>. Using Mapnik and Cairo, we
+built <i>OCitySMap</i>, a Python module that :{%endblocktrans%}</p>
 
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