Feat: Add favicon for GH page

[tungbq]

Problem

Feat: Add logo for GH page

Solution

Feat: Add logo for GH page

Alternatives

No response

[tungbq]

https://github.com/orgs/community/discussions/63631

[tungbq]

https://github.com/orgs/community/discussions/22625

[tungbq]

https://stackoverflow.com/questions/35037482/favicon-with-github-pages

[tungbq]

pages-themes/cayman#93