As I said in the course intro, I had provided git repository for this course. You can go to this link:
https://github.com/tutsprime/laravel-qa
Now, just in case your code not running when follow a particular lesson, then you can hit the Branch. and choose the branch of the lesson you're following. For example you were following the lesson-6, then you can choose lesson-6 branch.

And you can then hit the last commit to see the last changed files.

Here you'll see the lines of code added in green color and lines of code removed/changed in red color.

You can fork the repository, and if you want to pull in your local machine, then you can go to repository overview. And then you can hit the Clone or download button.

You can then clone it by copy the URL and run this code in your terminal:
git clone https://github.com/your-github-account/laravel-qa.git
Or, you can also download the repository by hitting the Download ZIP. Save it to wherever directory you like and then extract it.
