Step 1, I'm pretty sure you are a Viveport developer! Not yet? Check this out to learn how to become a developer and the benefit of it: https://developer.viveport.com/us/develop_portal/
Step 2: So excited that now you could start your content submission! Com'n in: https://developer.viveport.com/console/
Step 3: Umn, can't quite figure out how to do it? Here's the submission guideline for you: https://developer.viveport.com/documents/developer-guide
Oops! You speak in Chinese only! Don't worry! Here's the Chinese version: https://developer.viveport.com/documents/developer-guide-chs
Let's rock the world!