Add new lesson novice/r/rstudio/git

[sjackman]

See #492

[jdblischak]

Thanks for the contribution, @sjackman. Some thoughts:

• The lesson starts with slides on motivation from @BernhardKonrad. This makes the lesson not self-contained. Instead, what if this lesson was preceded by the first novice Git lesson, which introduces version control?
• Students are instructed to install Git and the other software before arriving at the bootcamp. Could you instead add these additional installation instructions to the setup file in a separate PR?
• Since this is teaching a GUI, it would be useful to have some screenshots to illustrate the different steps.

[jennybc]

I suggest clarifying that that this relates to, e.g. password for GitHub. Is it only for GitHub or for a general remote git servers?

[jdblischak]

Thanks for the reviews, @jennybc and @naupaka.

@sjackman, will you have time to work on this and #589 soon? We're working on breaking up the bc repo (see #759 and Greg's blog post). If you don't currently have the time, we can close these for now and you can resubmit to the appropriate lesson repository.

[jennybc]

We actually have a much more comprehensive set of instructions now, due to teaching a UBC grad course together. Both @sjackman and @BernhardKonrad have worked with me to make this:

http://stat545-ubc.github.io/git00_index.html

@BernhardKonrad has said he will turn it into a PR for SWC.

[jdblischak]

OK. Great. Though once we are done breaking up the bc repo, this probably won't need to be a PR. Instead these lessons could be spun out into their own separate repo that instructors could then use for teaching version control via RStudio in their bootcamps. But we can talk logistics more once the new workflow is established.