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Unsure how to clone Git directory to device - Jenkins track

The "Version Control Integration" task in the "Continuous Integration with Jenkins" training wants me to "Now clone your forked repo to your computer, and make a new commit to it. (It doesn't matter what you change; try adding a "README.txt" file.)" - I get that it's asking me to do a git pull, but I'm not sure where that goes?

The console window I have open is running Jenkins locally, so I don't have the dollar sign to enter text into. Am I meant to do this in Jenkins somehow, or can I download the files straight from the github as a ZIP? Should I pull, add and commit back using a different console window? I'm not sure what exactly is expected of me at this point.

And if I do complete this in a new console window - do I start from git init and use the github link?