From the Service Detail View click on Share on marketplace.
Fill in details regarding your service in the Share on marketplace view.
Service Name: Enter a name to identify your service on the marketplace. Default: Your service’s current name.
Short Description: Enter a short description to describe your service. This is visible in the marketplace. Default: Your service’s current description.
Detailed Description: Enter a detailed description to further describe your service and its intended use. (Optional)
Preview Images: Upload some images to showcase the data types handled by your service. It’s good to include examples of results. (Optional)
Click on Save to save your changes. Note: This will not publish or share your service.
Click on Share on marketplace to publish and share your service to the marketplace