docs: Changed demo url.

Author: kkomelin

README.md

@@ -184,5 +184,5 @@ Next checks whether the image url which loader generates has the exact value whi
 [test-status-img]: https://github.com/uploadcare/nextjs-loader/actions/workflows/test-and-lint.yml/badge.svg
 [npm-img]: https://img.shields.io/npm/v/@uploadcare/nextjs-loader.svg
 [npm-link]: https://www.npmjs.com/package/@uploadcare/nextjs-loader
-[demo-link]: https://nextjs-loader.vercel.app/
+[demo-link]: https://uploadcare-nextjs-loader.vercel.app/
 [uploadcare-transformation-image-compression-docs]: https://uploadcare.com/docs/transformations/image/compression/?utm_source=github&utm_campaign=nextjs-loader