Log into your HP account and on the top right hand corner you will find "Create a new hub". Click that. A page will be open where you will be required to assemble your hub using capsules like, Text, video, photo, affiliate sites like eBay and amazon, links etc.
Use those capsules to assemble you hub. After completing your hub, you can hit a command that says Preview to preview your hub, or Publish to publish your hub.
If you are still confuse email me using firstname.lastname@example.org and I will help you.