Sign up for a free Github account. Use the same email address you entered into the command prompt.

Click on the top left icon Settings SSH keys Add SSH key

Enter a title you'll remember. Titles are a friendly way to identify which key is associated to a computer. If you replace your computer, you'll want to delete the key that is associated with it.

Now you can just paste your ssh key into the text box. The installer automatically copied it to your clipboard. If it's no longer in your clipboard, you can copy it again by navigating to your command prompt and typing:

Click "Add Key" and enter your Github password.