Add resources to R

[Sagar Patil]

Add resources for R language - books, blogs, video lessons, etc.

[Kashif Rafique]

CodeSchool is now part of Pluralsight; a paid platform.

Try R - CodeSchool should be removed as it is redirecting to a paid resource i.e. https://www.pluralsight.com/search?q=R.

Removed via following commit:
removing Try R - Codeschool

[Sagar Patil]

thanks, I'll change this. @logichub

[Hello World]

@Byte7 Did you get chance to look at this?

[Sagar Patil]

@codingonHP I haven't looked at this in a while. It would be better if you can resolve this, let me know if you can't. Thanks!

[Santanu Jana]

hello,
How can i help you? I am a newcomer to open source if you have any problem please assign me and i would love to contribute.

[ARYAN YADAV]

Hello,
I have my own notes and research in R programming.
If you specify what type of resources you prefer most i would love to contribute in it.