CC Licenses added in PT-BR books section

[mateus-fernandes20]

What does this PR do?

Add info based on https://github.com/EbookFoundation/free-programming-books/issues/11355

For resources

Description

• Sistemas Operacionais: Conceitos e Mecanismos - Carlos A. Maziero (PDF) License (CC BY-NC-SA) found at page 3
• Inteligência artificial: avanços e tendências - Fabio G. Cozman, Guilherme Ary Plonski, Hugo Neri (PDF) License (CC BY-NC-SA) found at page 4
• Processamento de Linguagem Natural: Conceitos, Técnicas e Aplicações em Português - Helena M. Caseli, Maria G. V. Nunes (PDF) License (CC BY-NC-ND) found in the right side of the webpage
• A Internet das Coisas - Eduardo Magrani (PDF) License (CC BY-SA) found at page 4

  Why is this valuable (or not)?

How do we know it's really free?

For book lists, is it a book? For course lists, is it a course? etc.

• It's a book

  Checklist:

• [x] Read our contributing guidelines.
• [x] Search for duplicates.
• [x] Include author(s) and platform where appropriate.
• [x] Put lists in alphabetical order, correct spacing.
• [x] Add needed indications (PDF, access notes, under construction).
• [x] Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[github-actions[bot]]

Oh no 😟! Conflicts have been found.

Please 🙏, take a moment and address the merge conflicts of your pull request before we can evaluate it again.

Thanks in advance for your effort and patience ❤️!

[mateus-fernandes20]

Merge conflicts resolved.