Add support for the R language

[TPreece101]

I'm thinking of making a PR to add support for .R files. They syntax in R for comments is just # <comment> and no multiline comment support so I'm thinking that coffeeParser will work well.

From looking at the library it seems like I need to do the following:

• [x] Add a '.R' property to the parsersDb in src/lib/parsers.ts
• [x] Add a test file to tests/fixtures/
• [x] Add a test to tests/parser-spec.ts
• [x] Add an entry to media/supported-languages.md

It would be great if you could let me know if I'm missing anything else that would need to be done. Are there any contribution guidelines anywhere? I had a look but I couldn't see anything, but I could be missing something 😅

[TPreece101]

Here is my PR: https://github.com/pgilad/leasot/pull/323

Let me know if I've missed anything 😁

[pgilad]

Looks good thanks!