Upgrade to Docusaurus 2.1.0

package.json

@@ -13,9 +13,9 @@
   },
   "dependencies": {
     "@cmfcmf/docusaurus-search-local": "^0.11.0",
-    "@docusaurus/core": "2.0.0-beta.21",
-    "@docusaurus/plugin-client-redirects": "2.0.0-beta.21",
-    "@docusaurus/preset-classic": "2.0.0-beta.21",
+    "@docusaurus/core": "^2.1.0",
+    "@docusaurus/plugin-client-redirects": "^2.1.0",
+    "@docusaurus/preset-classic": "^2.1.0",
     "@mdx-js/react": "^1.6.21",
     "@stoplight/json-schema-viewer": "^4.5.0",
     "@stoplight/markdown-viewer": "^5.4.5",