Add TutorialSearch to Learning Resources (#2199)

* Add TutorialSearch to Learning Resources section

* Update tutorialsearch.io link to topic-specific URL

Author: ParishKhan

README.md

@@ -401,6 +401,7 @@ Current Angular version: [![npm version](https://badge.fury.io/js/%40angular%2Fc
 * [Angular Enterprise Architecture](https://angularexperts.io/products/ebook-angular-enterprise-architecture) - `Tomas Trajan`.
 * [Testing Angular](https://testing-angular.com) - A Guide to Robust Angular Applications **FREE**.
 * [Modern Angular](https://www.angulararchitects.io/en/ebooks/modern-angular/?book) - `Manfred Steyer` **FREE**.
+* [TutorialSearch](https://tutorialsearch.io/browse/programming-languages/angular-interview) - Free cross-platform search engine indexing 50,000+ tutorials from Udemy, Skillshare, Pluralsight, and other major learning platforms across 45+ categories.
 * [Ultimate Guide to Angular Evolution](https://houseofangular.io/the-ultimate-guide-to-angular-evolution/) - `House of Angular` **FREE**.
 * [Micro Frontends and Moduliths with Angular](https://www.angulararchitects.io/en/ebooks/micro-frontends-and-moduliths-with-angular/) - `Manfred Steyer` **FREE**.
 * [Angular Mastery](https://christianlydemann.com/angular-mastery-book/) - `CHRISTIAN LÜDEMANN` **FREE**.