This means you've created the website and you're at the point where you want to make content. Wordpress would be where you edit your content after you whip it all up in your Site Content option on the Websites tab.

What you can do to edit the default Hello World page is go into the "Websites" tab, click on Site Manager, click log in on the website of your choice. This will take you to the back office. There will be a menu on the left hand side, look for where it says pages or posts. One of those should have the about me and you can click on either where it says "Hello World" or "Edit". Then you can begin adding content to that page. Once your done you can click on "Publish".

If you're looking to just create content, you'll want to go on the websites tab and click on "Site Content". This will allow you to type something up from scratch and edit it grammatically, spelling and punctuation. When you're done there, you simple click "Publish" and it gives you the option to "Edit in Wordpress" which is what I do when I'm done typing and want to add photos and add more to build your content.

Hope this helped! Good luck!