NeMo Model to HF Hub Upload Tutorial
# What does this PR do ?

Add a tutorial showing how to upload NeMo models to the Hugging Face Hub

**Collection**: [Core, Documentation]

# Changelog 
- Add tutorial notebook that shows how to upload a nemo model to the hub
- Prepare the model card with a template
- Upload results of model evaluations

# Before your PR is "Ready for review"
**Pre checks**:
- [x] Make sure you read and followed [Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md)
- [ ] Did you write any new necessary tests?
- [x] Did you add or update any necessary documentation?
- [ ] Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  - [ ] Reviewer: Does the PR have correct import guards for all optional libraries?
  
**PR Type**:
- [x] New Feature
- [ ] Bugfix
- [x] Documentation

If you haven't finished some of the above items you can still open "Draft" PR.
