Update Vue example to use own runtime

Author: wooorm

example/vue.html

@@ -8,8 +8,8 @@ <h1><code>Vue</code> + <code>hast-util-to-jsx-runtime</code></h1>
 <div id=root></div>
 <script type=module>
 /* eslint-env browser */
-import {Fragment, jsx, jsxs} from 'https://esm.sh/vue[email protected]/jsx-runtime'
-import {createApp} from 'https://esm.sh/vue@3?dev'
+import {createApp} from 'https://esm.sh/vue@3.3.0-alpha.8?dev'
+import {Fragment, jsx, jsxs} from 'https://esm.sh/vue@3.3.0-alpha.8/jsx-runtime?dev'
 import {toJsxRuntime} from './hast-util-to-jsx-runtime.min.js'
 import {createTree} from './create-tree.js'
 

readme.md

@@ -378,7 +378,7 @@ render(
 In Node.js, do:
 
 ```js
-import {Fragment, jsx, jsxs} from 'vue-jsx-runtime/jsx-runtime'
+import {Fragment, jsx, jsxs} from 'vue/jsx-runtime' // Available since `vue@^3.3.0-alpha.6`.
 import serverRenderer from '@vue/server-renderer'
 import {h} from 'hastscript'
 import {toJsxRuntime} from 'hast-util-to-jsx-runtime'