message: Upgrade Docusaurus to 2.0.0-beta.9
diff: "write-heading-ids": "docusaurus write-heading-ids"
  },
  "dependencies": {
  - "@docusaurus/core": "2.0.0-beta.8",
  - "@docusaurus/preset-classic": "2.0.0-beta.8",
  + "@docusaurus/core": "^2.0.0-beta.9",
  + "@docusaurus/preset-classic": "^2.0.0-beta.9",
  "@mdx-js/react": "^1.6.21",
  "@svgr/webpack": "^5.5.0",
  "clsx": "^1.1.1",
  