init (graduate from prototype)

packages/runtime-dom/README.md

@@ -0,0 +1,21 @@
+# @vue/runtime-dom
+
+``` js
+import { h, render, Component } from '@vue/runtime-dom'
+
+class App extends Component {
+  data () {
+    return {
+      msg: 'Hello World!'
+    }
+  }
+  render () {
+    return h('div', this.msg)
+  }
+}
+
+render(
+  h(App),
+  document.getElementById('app')
+)
+```