Little cleanup

[rsese]

Why:

looked at this as part of https://github.com/github/skills/issues/96 and though there was a script using gh pr, I found the script wasn't actually used. The course works but went ahead and did a tiny bit of cleanup while I was here to maybe make things a little more explicit for new folks...

What's being changed:

• biggest thing was step 5 where we didn't explicitly say to update/commit your change like we do in all the other steps

Check off the following:

• For workflow changes, I have verified the Actions workflows function as expected.
• For content changes, I have reviewed the style guide.

[heiskr]

Wonderful, thank you for cleaning this up 💖