Merge pull request 'add gefilte fest' (#37) from vv01f/nix-config:master into master

Reviewed-on: #37

hosts/containers/ticker/default.nix

@@ -141,6 +141,10 @@ with lib;
           url = "https://spaceboyz.net/~astro/KlimacampDresden.ics";
           color = "#7B996A";
         };
+        gefilte-fest-dresden = {
+          url = "http://gefilte-fest-dresden.de/feed/my-calendar-google/";
+          color = "#4B693A";
+        };
      };
     };
   };