v1.9.0 : add keyboard components

package.json

@@ -1,6 +1,6 @@
 {
   "name": "docubook",
-  "version": "1.8.5",
+  "version": "1.9.0",
   "private": true,
   "scripts": {
     "dev": "next dev",
@@ -9,6 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@mdx-js/react": "^3.1.0",
     "@radix-ui/react-accordion": "^1.2.0",
     "@radix-ui/react-avatar": "^1.1.0",
     "@radix-ui/react-collapsible": "^1.1.0",