added 5 islamic books in library folder

[l253010]

Summary

Library changes (REQUIRED)

I have added the following 5 files under the library/ folder:

• library/A Brief Illustrated Guide to Understanding Islam (I. A. Ibrahim).pdf
• library/Bible proves Jesus is not God p2.pdf
• library/The Divine Reality God Islam and The Mirage of Atheism by Hamza Andreas Tzortzis.pdf
• library/en_Islam_in_Focus.pdf
• library/islam.pdf

Checklist (all required)

• I confirm this PR includes at least 5 books in the library (files in library/ and entries in books.json).
• I updated any relevant docs or README if the structure changed.
• The repository builds/tests (if applicable) pass locally.

Example book JSON format

You can provide books as a top-level array or as the value of a books key.

Top-level array:

[
  { "title": "Book One", "author": "Author A", "notes": "Short note" },
  { "title": "Book Two", "author": "Author B" },
  { "title": "Book Three", "author": "Author C" },
  { "title": "Book Four", "author": "Author D" },
  { "title": "Book Five", "author": "Author E" }
]

books.json with books key:

{
  "books": [
    { "title": "Book One", "author": "Author A" },
    { "title": "Book Two", "author": "Author B" },
    { "title": "Book Three", "author": "Author C" },
    { "title": "Book Four", "author": "Author D" },
    { "title": "Book Five", "author": "Author E" }
  ]
}

If you add individual files under library/, prefer one file per book (e.g., library/book-title.md) with at least:

• Title (H1 or frontmatter)
• Author
• Short description

Thank you for contributing!