If anyone is wounder like (I did) on how to find a URL for your profile pictures. Here is how I completed my set up.
It is sorta annoying that you cant just upload a JPEG or PNG from your computer but there is a way to get around this.
If you are going to use a profile pic which can for found on other social media ie. Twitter or Facebook you can go to your page and right click on that image and copy the URL from there and past it into the PROFILE PICTURE URL or COVER IMAGE URL.
Another way is to use this site https://imgsafe.org/ however it is not recommended as the site may save images uploaded.