refactor: rename packages

packages/runtime-test/README.md

@@ -0,0 +1,34 @@
+# @vue/runtime-test
+
+``` js
+import {
+  h,
+  render,
+  Component,
+  nodeOps,
+  startRecordingOps,
+  dumpOps
+} from '@vue/runtime-test'
+
+class App extends Component {
+  data () {
+    return {
+      msg: 'Hello World!'
+    }
+  }
+  render () {
+    return h('div', this.msg)
+  }
+}
+
+// root is of type `TestElement` as defined in src/nodeOps.ts
+const root = nodeOps.createElement('div')
+
+startRecordingOps()
+
+render(h(App), root)
+
+const ops = dumpOps()
+
+console.log(ops)
+```