Add DeepWiki badge to README

Author: alekswebnet

README.md

@@ -7,6 +7,7 @@ The package provides a custom element, based on PDF.js [viewer options](https://
 Supported in all [major browsers](https://caniuse.com/custom-elementsv1), and works with most [JS frameworks](https://custom-elements-everywhere.com/).
 
 [![npm version](https://img.shields.io/npm/v/pdfjs-viewer-element?logo=npm&logoColor=fff)](https://www.npmjs.com/package/pdfjs-viewer-element)
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/alekswebnet/pdfjs-viewer-element)
 [![Package Quality](https://packagequality.com/shield/pdfjs-viewer-element.svg)](https://packagequality.com/#?package=pdfjs-viewer-element)
 [![Published on webcomponents.org](https://img.shields.io/badge/webcomponents.org-published-blue.svg)](https://www.webcomponents.org/element/pdfjs-viewer-element)