Ocaml.org tutorial revamping, con'd - Values and Functions

[cuihtlauac]

Here is a new episode in the series of updates of the ocaml.org tutorials

• https://github.com/ocaml/ocaml.org/pull/1512
• https://staging.ocaml.org/docs/values-and-functions

It addresses values, functions, environment, scope, closures, shadowing and friends.

As for the previous one, we’d love to know what you think about it.

Thanks