feat: update demo13

Author: huixisheng

demo13/bundle.js

@@ -0,0 +1,11 @@
+webpackJsonp([0],[
+/* 0 */,
+/* 1 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var $ = __webpack_require__(0);
+$('h1').text('Hello World');
+
+
+/***/ })
+],[1]);

demo13/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "webpack-demo13",
+  "version": "1.0.0",
+  "scripts": {
+    "dev": "webpack-dev-server --open",
+    "build": "webpack"
+  },
+  "license": "MIT"
+}