Update sponsors list

Author: joto

_includes/sponsors.html

@@ -1,7 +1,9 @@
-<div class="sponsorlist">
-    <div><a href="https://www.geofabrik.de/"><img width="40" height="40" src="{% link sponsors/geofabrik.svg %}" alt="Geofabrik" title="Geofabrik"/></a></div>
-    <div><a href="https://www.cybertec-postgresql.com/"><img height="30" src="{% link sponsors/cybertec.svg %}" alt="Cybertec" title="Cybertec"/></a></div>
-    <div><a href="https://gis-ops.com/"><img height="30" src="{% link sponsors/gisops.png %}" alt="GIS•OPS" title="GIS•OPS"/></a></div>
-</div>
 
-<p>We also thank our former sponsor <a href="https://www.mapbox.com/">Mapbox</a> for their support over many years.</p>
+<p>There are currently no sponsors for Osmium. Please get in touch if you
+can support Osmium.<p>
+
+<p>We thank our former sponsor <a href="https://www.mapbox.com/">Mapbox</a> for
+their support over many years as well as <a
+href="https://www.geofabrik.de/">Geofabrik</a>, <a
+href="https://www.cybertec-postgresql.com/">Cybertec</a>, and <a
+href="https://gis-ops.com/">GIS•OPS</a>.</p>