add artplayer-template

packages/artplayer-template/react.js/src/App.js

@@ -0,0 +1,23 @@
+import React from "react";
+import Artplayer from "./ArtPlayer";
+
+function App() {
+  return (
+    <div>
+      <Artplayer
+        option={{
+          url: "https://artplayer.org/assets/sample/video.mp4",
+          autoSize: true,
+        }}
+        style={{
+          width: "600px",
+          height: "400px",
+          margin: "60px auto 0",
+        }}
+        getInstance={(art) => console.log(art)}
+      />
+    </div>
+  );
+}
+
+export default App;