[Doc] Tutorial - R bindings

[asfimport]

Make a simple tutorial of adding a unit test PR.

Reporter: Alenka Frim / @AlenkaF
Assignee: Alenka Frim / @AlenkaF

Related issues:

• [R][Documentation] Document the process of creating R bindings for compute kernels and rationale behind conventions (is fixed by)

PRs and other links:

• GitHub Pull Request #12016

_{Note: This issue was originally created as ARROW-14603. Please see the migration documentation for further details.}

[asfimport]

Alenka Frim / @AlenkaF:
I will insert the reference to the content of #11915 once the PR is closed. In the PR the tutorial for R bindings is written and this issue can be closed.

We can add additional tutorials in the V2 of the guide.

[asfimport]

Nicola Crane / @thisisnic:
Issue resolved by pull request 12016
#12016