[DOCS]: add docs for Chroma Cloud

[tonytrill]

Pull Request Type

• [x] ✨ feat
• [ ] 🐛 fix
• [ ] ♻️ refactor
• [ ] 💄 style

Relevant Issues

resolves #136

What is in this change?

Adding docs for Chroma Cloud

Additional Information

Please note: this is dependent on https://github.com/Mintplex-Labs/anything-llm/pull/3333

Validations

• [x] Ensured updated documentation pass spell check
• [x] Updated or added relevant links as needed
• [x] Reviewed the changes for clarity and accuracy
• [x] Successfully ran the code locally without encountering errors

[vercel[bot]]

@tonytrill is attempting to deploy a commit to the Mintplex Labs Inc Team on Vercel.

A member of the Team first needs to authorize it.

[shatfield4]

Closing due to simpler implementation here: https://github.com/Mintplex-Labs/anything-llm/pull/4273