config keys are exposed in github, direction needed for personal repositories

[gnmonsour]

The config folder is checked in to github and visible to all. Shouldn't students be directed to alter their gitignore content to not check in that folder?

[erkjbro]

The dev.js file is listed in gitignore. He also explains that students shouldn't check the file in during his course. The file itself has a warning about this also. It's basically just a reference.

Although it's probably good to ignore ci.js as well? Unless it was altered to work similarly to the prod.js file.