Free website to read e books

What does this PR do?

Add resource(s)

Why is this valuable (or not)?

This is valuable because this is free to use and download e books

How do we know it's really free?

I researched on it

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

It is a collection of e books

Checklist:

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

Follow-up

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