a few typos

[jsms90]

You should now be ablle to redirect into the directory just created using the command line.

mkdir css && git mv script.js ./js

informing your that you are in a 'detached HEAD' state

Your working directory shouldn't changes

Also, there are 4 backticks on line 124 instead of 3. It's messing with the code blocks & therefore the syntax higlighting