Update README.md

README.md

@@ -24,9 +24,8 @@ See also: [Your organization should run its own Mastodon server](https://martinf
 * Open Collective: [https://mastodon.opencollective.com](https://mastodon.opencollective.com/explore)
 * Raspberry Pi: [https://raspberrypi.social](https://raspberrypi.social/explore)
 
-## Opensource project / communities
+## Opensource projects
 * Grafana: [https://grafana.social](https://grafana.social/explore)
-* OSM (Openstreetmap) community: [https://en.osm.town](https://en.osm.town/explore)
 
 ## Corporate / commercial / other
 * Thoughtworks: [https://toot.thoughtworks.com](https://toot.thoughtworks.com/explore)