Helloworld

Hello!
I am new to this material that we are covering in this class.  l realize as I began working through the assignments, 
I found installing R and Rstudio as well as creating a GITHUB account and a repository was very easy.  However, it 
is difficult to create a text file called Helloworld.md.  I am lost and do not know where to begin.  I have all 
these new terms and concepts in my head: repositories, issue, branch, commit, and pull request.  

SMH
ALaPrince