https://github.com/davidsantiago/mustachequerade/blob/master/resources/templates/demo.mustache
There is, however, a more up-to-date and spec compliant mustache implementation for Clojure: https://github.com/davidsantiago/stencil. It actually pulls the spec and runs tests against it when the unit tests are ran. It is obviously the better implementation. Perhaps the Clojure link on the mustache website could be changed to point to it instead? I'd happy throw a pull request your way if necessary.