Add a test.

Author: Drup

test/mustache.ml

@@ -0,0 +1,12 @@
+open Tyxml
+
+let%template f ={|
+Hello {{name}}
+You have just won {{value}} dollars!
+{{#repo}}
+  <b>{{foo}}</b> {{name}}
+{{/repo}}
+{{^repo}}
+  No repos :(
+{{/repo}}
+|}