doc(main): Updated documentation (#290)

Author: ekkinox

README.md

@@ -3,6 +3,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 [![Go version](https://img.shields.io/badge/Go-≥1.20-blue)](https://go.dev/)
 [![codecov](https://codecov.io/gh/ankorstore/yokai/graph/badge.svg?token=ghUBlFsjhR)](https://codecov.io/gh/ankorstore/yokai)
+[![Documentation](https://img.shields.io/badge/Doc-online-cyan)](https://ankorstore.github.io/yokai/)
 [![Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go)
 
 <p align="center">

docs/index.md

@@ -7,6 +7,7 @@ icon: material/book-open-page-variant-outline
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 [![Go version](https://img.shields.io/badge/Go-≥1.20-blue)](https://go.dev/)
 [![codecov](https://codecov.io/gh/ankorstore/yokai/graph/badge.svg?token=ghUBlFsjhR)](https://codecov.io/gh/ankorstore/yokai)
+[![Documentation](https://img.shields.io/badge/Doc-online-cyan)](https://ankorstore.github.io/yokai/)
 [![Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go)
 
 > A `simple`, `modular` and `observable` Go framework for `backend applications`.