add deno-with-jsdeliver as an example deno script

Author: gfx

example/deno-with-jsdeliver.ts

@@ -0,0 +1,5 @@
+#!/usr/bin/env deno run
+/* eslint-disable no-console */
+import * as msgpack from "https://cdn.jsdelivr.net/npm/@msgpack/msgpack/mod.ts";
+
+console.log(msgpack.decode(msgpack.encode("Hello, world!")));