feat: add docs routing

package.json

@@ -18,11 +18,14 @@
     "@react-three/fiber": "^9.6.0",
     "@react-three/postprocessing": "^3.0.4",
     "@react-three/rapier": "^2.2.0",
+    "@tanstack/react-router": "^1.168.25",
     "gsap": "^3.15.0",
     "lil-gui": "^0.21.0",
     "r3f-perf": "^7.2.3",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
+    "react-markdown": "^10.1.0",
+    "remark-gfm": "^4.0.1",
     "three": "^0.183.2"
   },
   "devDependencies": {