Have students give planets repo a unique name

[maneesha]

After the git workshop I taught, I think it was confusing for students to pull a classmate's repo that was named planets but was different from their own planets repo.

This may be fixed if we have students name their repos something unique... i.e., planets-username or something like that. It would involve fixing references to planets throughout the lesson, including some of the images. If others think this would help I can edit all the text and images I can work on this... just don't want to start unless there is consensus that this would work.

[iglpdc]

I agree this is confusing. I'm not even sure if all OS will handle the situation in the same way (Mac OS adds a "1" to the folder name".)

As you say, the best solution is to add their partner's username (they need it to clone) to the folder name when cloning:

git clone https://github.com/vlad/planets.git vlad-planets

[Ry4an]

WIP at #216