chore: regen examples for 2.0 beta.18 (#7002)

docs/tutorial-basics/create-a-document.md

@@ -41,14 +41,14 @@ This is my **first Docusaurus document**!
 
 It is also possible to create your sidebar explicitly in `sidebars.js`:
 
-```diff title="sidebars.js"
+```js title="sidebars.js"
 module.exports = {
   tutorialSidebar: [
     {
       type: 'category',
       label: 'Tutorial',
--     items: [...],
+      // highlight-next-line
-+     items: ['hello'],
+      items: ['hello'],
     },
   ],
 };

package.json

@@ -15,13 +15,13 @@
     "dev": "docusaurus start"
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-beta.17",
+    "@docusaurus/core": "2.0.0-beta.18",
-    "@docusaurus/preset-classic": "2.0.0-beta.17",
+    "@docusaurus/preset-classic": "2.0.0-beta.18",
     "@mdx-js/react": "^1.6.22",
     "clsx": "^1.1.1",
-    "prism-react-renderer": "^1.2.1",
+    "prism-react-renderer": "^1.3.1",
-    "react": "^17.0.1",
+    "react": "^17.0.2",
-    "react-dom": "^17.0.1"
+    "react-dom": "^17.0.2"
   },
   "browserslist": {
     "production": [