Update free-courses-hi.md

[wildlucifer]

Added a playlist of R programming.

What does this PR do?

A youtube playlist for R programming in Hindi.

For resources

Description

Complete tutorial to learn R programming.

Why is this valuable (or not)?

It is complete resource for learning R programming from beginner to advanced.

How do we know it's really free?

It is a youtube channel.

For book lists, is it a book? For course lists, is it a course? etc.

Checklist:

• [x] Read our contributing guidelines.
• [x] Search for duplicates.
• [x] Include author(s) and platform where appropriate.
• [x] Put lists in alphabetical order, correct spacing.
• [x] Add needed indications (PDF, access notes, under construction).
• [x] Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[LuigiImVector]

resolve linter problems

[LuigiImVector]

solve conflicts

[shrn01]

Closing the PR as there are no changes