[Doc] Steps in making your first PR - R bindings

[asfimport]

Solving the problem/R bindings section of the Steps in making your first PR.

Steps in making your first PR outline:

• Set up (command line and Git)
• Building Arrow package
  • Building C++
  • Building PyArrow
  • Building R-Arrow
• Finding good first issues
• Solving the problem
  • Python bindings
  • R bindings
• Testing
• Life cycle of a Pull Request
  • Making the PR
  • Reviews and get the PR merge

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)
• [R][Docs] Document writing bindings between C++ code and R functions (is related to)

PRs and other links:

• GitHub Pull Request #12018

_{Note: This issue was originally created as ARROW-14757. 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. With it this issue can be closed also.

[asfimport]

Nicola Crane / @thisisnic:
Issue resolved by pull request 12018
#12018