upgrade docusaurus 2.0.0-alpha.72

Author: JeremyDolle

documentation/package.json

@@ -15,12 +15,12 @@
     "prettier:diff": "prettier --config .prettierrc --list-different \"**/*.{js,md}\""
   },
   "dependencies": {
-    "@docusaurus/core": "2.0.0-alpha.64",
-    "@docusaurus/preset-classic": "2.0.0-alpha.64",
-    "@mdx-js/react": "^1.5.8",
+    "@docusaurus/core": "2.0.0-alpha.72",
+    "@docusaurus/preset-classic": "2.0.0-alpha.72",
+    "@mdx-js/react": "^1.6.21",
     "clsx": "^1.1.1",
-    "react": "^16.8.4",
-    "react-dom": "^16.8.4"
+    "react": "^17.0.1",
+    "react-dom": "^17.0.1"
   },
   "devDependencies": {
     "babel-eslint": "^10.0.3",
@@ -47,4 +47,4 @@
       "last 1 safari version"
     ]
   }
-}
+}