Does Gitlab support R Markdown format?

I have been using classic MD format for doc that is placed on our Gitlab repository. Such as this one:

I have recently looked found out R Markdown (.rmd) format and apparently you can make different tabs within markdown file which is what we would prefer instead of classic .md file.

In my git project I have renamed .md file to .rmd and tried the following sample:

However, in Gitlab this is not rendered as rmd:

Is there any way to tell the Gitlab to render this as as rmd?