camel fixed provider naming. Added utm to track number of users for potential future collabs

Description

Hi! I've patched up the naming so that our platform (AI/ML API) is ... well, named correctly in the docs :)

Also - I've added a utm tracker to the docs We put those in, so that if the number of users coming through is high, we could prioritize tutorials and events with camel-ai higher.

Hope you guys don't mind - but if any questions arise - I'll be glad to answer them

Checklist

Go over all the following points, and put an x in all the boxes that apply.

[x] I have read the CONTRIBUTION guide (required)
[ ] I have linked this PR to an issue using the Development section on the right sidebar or by adding Fixes #issue-number in the PR description (required)
[ ] I have checked if any dependencies need to be added or updated in pyproject.toml and uv lock
[ ] I have updated the tests accordingly (required for a bug fix or a new feature)
[x] I have updated the documentation if needed:
[ ] I have added examples if this is a new feature