This code creates a page template which you can use to display any users using any of the parameters included in the get_users function.
In this example, the code generates a list of all users who have published at least 1 post however you can change the parameters to anything you like.
Simply create a new file using a code editor like Notepad++ and add the following code to the file. Save the file as a PHP file.
Name the file anything you like, ( something like page_contributors.php ) and upload it to your child themes root directory.