Fix README internal links for GitHub rendering (#3403)

* Initial plan

* Fix docs index links

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

* Make docs links GitHub friendly

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

* Move docs assets to root and update paths

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

* Update image source for Zustand logo

* Fix docs internal links for GitHub

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

* Make docs hero links GitHub friendly

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

* Fix image path for Zustand logo in introduction.md

* Update image source path in README.md

* Delete docs/public directory

* Fix README links for GitHub view

Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: dbritto-dev <1697714+dbritto-dev@users.noreply.github.com>
Co-authored-by: Danilo Britto <dbritto.dev@gmail.com>