Section or appendix in the documentation showing R code

[ayushpatnaikgit]

Examples should have references to equivalent R code. The references could be done by creating an appendix in the API reference, or there should be a separate section.

[smishr]

I think once we get some time, we should make a page with several real-world survey, with constructing the survey design object, finding the mean etc. Take inspiration from Analyse Survey Data Free. Or translate some of the R code here into Survey.jl