Add newLISP Language and "Introduction to newLISP" Book

[godlykmathews]

What does this PR do?

Add resource | Add info | Improve repo

Description

This pull request adds newLISP to the list of programming languages in books/free-programming-books-langs.md. It includes the resource "Introduction to newLISP" as an introductory book for the language.

Why is this valuable (or not)?

newLISP is a lightweight, fast, and easy-to-learn dialect of the Lisp programming language. Including an introductory resource for newLISP expands the variety of programming languages covered in the repository and helps learners discover alternative paradigms and approaches in programming.

How do we know it's really free?

The "Introduction to newLISP" book is freely available online, ensuring open access for all users.

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

This is a book resource for the newLISP programming language.

Checklist:

• [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!

[eshellman]

It's usually not helpful to add a category for a single resource. Try to find another category, or see if there are other books in our lists that would fit into your category. Just put it in general Lisp category