R Resources added (dipakkr#842)

* added first commit

* added first commit

CONTRIBUTORS.md

@@ -301,6 +301,7 @@ Instructions :
 | 268 | **Rafli Fahreza**  | Indonesia | Student | [Github](https://github.com/HYP3RTEX7) |
 | 269 | **Pranav Sharma** | India | Computer Science Student | [Github](https://github.com/pranav7955) - [LinkedIn](https://in.linkedin.com/in/pranav7955)
 | 270 | **Rich** | Mexico | Intelligent Systems Student, Musician | [GitHub](https://github.com/Richb17) |
+| 271 | **Beatriz Milz** | Brazil | Environmental Science Student | [GitHub](https://github.com/beatrizmilz) |
 
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README.md

@@ -427,6 +427,7 @@ When I was in college, I missed a lot of opportunities like hackathons, conferen
 - [R-Bloggers](https://www.r-bloggers.com/)
 - [Introduction to Data Science by Rafael A. Irizarry](https://rafalab.github.io/dsbook/)
 - [R for Data Science by Garrett Grolemund and Hadley Wickham](https://r4ds.had.co.nz/)
+- [Hands-On Programming with R by Garrett Grolemund](https://rstudio-education.github.io/hopr/)
 
 ## 1.13 Haskell
  - [Happy Learn Haskell Tutorial](http://www.happylearnhaskelltutorial.com/)
@@ -788,6 +789,7 @@ For summer internship, start looking at least 3-4 months in advance. #Tip
 - [100 Days of Code](https://www.100daysofcode.com/connect/)
 - [Nerdzão Brazil](https://www.meetup.com/pt-BR/nerdzao/)
 - [Girl Develop It](https://www.girldevelopit.com/chapters)
+- [R-Ladies](https://rladies.org/)
 
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