message: docs: add vercel redirects
diff: {
  - "cleanUrls": true
  + "cleanUrls": true,
  + "redirects": [
  + {
  + "source": "/modules/:path((?!_stacks_).*)",
  + "destination": "/modules/_stacks_:path*",
  + "permanent": false
  + }
  + ]
  }
  