flutter_package / fluttertpc_get

Also the state management was missing in Spanish so i added

I couldn't figure out how to update the Table of Contents lol. I started googling and it seems like this might be using something that generates one for you? https://github.com/ekalinin/github-markdown-toc

This is my first time contributing to a project that isn't my own. So I'm not too good with GitHub yet 😂. Please forgive me!

add function for cnpj validation

[docs] several changes in docs

Add util extensions again in the lib + add missing function

[docs] fix typos

Update link for state management explanation

[docs] more docs for dependency management

Update README-es.md

 adding function to validate cpf isCpf

get_instance.dart redundant ternary