Add quanto install and instructions (#1976)
* chore: add quanto install option
* docs: add quanto to README
* Apply suggestions from code review
Co-authored-by: Ella Charlaix <80481427+echarlaix@users.noreply.github.com>
---------
Co-authored-by: Ella Charlaix <80481427+echarlaix@users.noreply.github.com>
