chore(v2): Regen codesandbox templates + add template: "docusaurus" (#4063)

examples/bootstrap/docusaurus.config.js

@@ -4,6 +4,7 @@ module.exports = {
   url: 'https://your-docusaurus-test-site.com',
   baseUrl: '/',
   onBrokenLinks: 'throw',
+  onBrokenMarkdownLinks: 'warn',
   favicon: 'img/favicon.ico',
   organizationName: 'facebook', // Usually your GitHub org/user name.
   projectName: 'docusaurus', // Usually your repo name.

examples/bootstrap/package.json

@@ -12,8 +12,8 @@
     "dev": "docusaurus start"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.66",
-    "@docusaurus/preset-bootstrap": "2.0.0-alpha.66",
+    "@docusaurus/core": "2.0.0-alpha.70",
+    "@docusaurus/preset-bootstrap": "2.0.0-alpha.70",
     "@mdx-js/react": "^1.5.8",
     "classnames": "^2.2.6",
     "react": "^16.8.4",

examples/bootstrap/sandbox.config.json

@@ -2,5 +2,5 @@
   "infiniteLoopProtection": true,
   "hardReloadOnChange": true,
   "view": "browser",
-  "template": "node"
-}
+  "template": "docusaurus"
+}