* Update docs to mention maxDuration to 10
I forked the project and tried running it, but got an error saying
The value for maxDuration must be between 1 second and 10 seconds, in order to increase this limit upgrade your plan: https://vercel.com/pricing
- We have to set the maxDuration to 10 for free plans in vercel.json
* docs(contributing.md): improve syntax
Co-authored-by: rickstaa <rick.staa@outlook.com>
