Good news, if your reading this then your hosting is set up and working correctly! To get started we reccomend logging into your cPanel account and having a look around. You can also logon to the hellolocal apps page, from there you can get access to web-mail, database tools and even online code editors that are all setup to work with your account.
You can remove this file index.php and upload your website to the public_html folder, or use the one-click installer to setup an application in your hosting space!