Implement build PDF

[vitormattos]

Reference: https://github.com/nextcloud/documentation/blob/master/Makefile

to-do

• Change make file to implement the make pdf.
• Add at README file like this: https://github.com/nextcloud/documentation/?tab=readme-ov-file#building-pdf

This is a good first issue for someone who wants to make their first contribution. Feel free to ask questions in the comments if you need help!