Minor typo in the README

[cc359]

Hi,

There's a small typo in the README where the no-tests branch is referenced when it should be no-test instead.
Also there's a typo in the URL to reference when using git clone in the "Installation & Setup" section:

testing-fundamentals/README.md

Line 18 in 132db39

git clone https://frontendmasters.com/courses/web-app-testing/

Looks like people have previously raised PRs for this but they've abandoned them #3 #1

Thanks