* Add resources about algorithms from UNAM

## What does this PR do?
Add free resource about algorithms from UNAM
 
## For resources
### Description
Handbook used in the online program of UNAM (SUAyED) for algorithms assignatures covering topics such as: algorithms concepts and properties, automatan, fomal programming languages and Turing machine.
### Why is this valuable (or not)?
This PR adds free material from the most pretigious college in México that is used in it's asignatures.
 
### How do we know it's really free?
It's provided from UNAM's official website.
 
### For book lists, is it a book? For course lists, is it a course? etc.
Yes, for the book lists it is a book.

## Checklist:
* [x]  Read our [contributing guidelines](https://github.com/EbookFoundation/free-programming-books/blob/master/CONTRIBUTING.md)
* [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)
 
## Follow-up
* Check the status of GitHub Actions and resolve any reported warnings!

* Fixed alphabetical order of the contribution

* Correction quoting source and authors