There are resources at the left panel in the homepage of HF. Learn from there.

I guess start with the hub

Hugging Face Hub documentation

and the hub python library

🤗 Hub client library

or, follow this Getting Started page

How to Get Started with Hugging Face – Open Source AI Models and Datasets

What is Hugging Face? In HF you can

• Download/fine-tune models
• Run models directly from hf: using transformers library
• Add/create models
• Browse/use datasets
• Create/browse demo apps (Spaces)

Similar to Github

• Join or create an organization
• Create a portofolio: 16 GB of RAM, 2 CPU cores, and 50 GB of disk space for free

Similar to Kaggle

• Learn AI Skills: tutorials where?

How to get started?