Create HelloWorld

    Create a text file called HelloWorld.md
    Add the line "## This is a markdown file" (without the quotation marks) to the document (without the quotation marks)
    Push the document to the datasciencecoursera repo you created on Github
    Submit the link to the HelloWorld.md file on your Github repo. 



The link goes to a datasciencecoursera repo on GitHub, or to a GitHub account that contains the datasciencecoursera repo (either is acceptable).