Add branch-specific link

README.md

@@ -15,7 +15,7 @@ Before your first day at Astronomer, you'll be ahead if you can do the following
 
 1. [Clone a GitHub repo](https://help.github.com/en/articles/cloning-a-repository) (aka download its contents to your "local machine", aka computer)
 2. [Create a GitHub "Issue"](https://help.github.com/en/articles/about-issues) (aka something you want to fix, edit, add, delete)
-3. [Create a branch](https://guides.github.com/activities/hello-world/) (aka a copy of those same files)
+3. [Create a branch](https://guides.github.com/activities/hello-world/#branch) (aka a copy of those same files)
 4. Make a change to a file on your own branch (and save it, but without affecting the original file in the "master" branch)
 5. [Submit a "Pull Request"](https://help.github.com/en/articles/about-pull-requests) - aka push up that change for review by someone else
 6. "Merge" that change to "master" (aka publish it and port those changes back up to the original file)