Add verifyfetch to Files section

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: hamzaydia

README.md

@@ -433,6 +433,7 @@ There're also some great commercial libraries, like [amchart](https://www.amchar
 * [diff2html](https://github.com/rtfpessoa/diff2html) - Git diff output parser and pretty HTML generator.
 * [jsPDF](https://github.com/MrRio/jsPDF) - JavaScript PDF generation.
 * [PDF.js](https://github.com/mozilla/pdf.js) - PDF Reader in JavaScript.
+* [verifyfetch](https://github.com/hamzaydia/verifyfetch) - Resumable, integrity-verified downloads for large files in the browser with constant memory.
 
 ## Functional Programming
 *Functional programming libraries to extend JavaScript’s capabilities.*