Add link to homepage in About section of Repo

[franciscojavierarceo]

🚀 Describe the new functionality needed

Under the "About" section in the repo, there's an option to enter a Website, it would be beneficial to users to
add a link to the documentation (https://llama-stack.readthedocs.io) to help them get started rather than have to scroll below the fold.

Here's an example repo with the link as it is

💡 Why is this needed? What if we don't build it?

Make it easier for users to get to the docs and get started

Other thoughts

No response

[raghotham]

done