Update introduction-to-angular@KDd40JOAvZ8O1mfhTYB3K.md (#6245)

Adding a description to the angular introduction with a link to the core angular website. This was generated live on a stream using Pieces for developers!

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-# Introduction to Angular
+# Introduction to Angular
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+Angular is a popular open-source front-end web application framework developed by Google. It is written in TypeScript and allows developers to build dynamic, single-page web applications with ease. Angular provides a comprehensive set of features for creating interactive and responsive user interfaces, making it a powerful tool for modern web development.
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+One of the key features of Angular is its use of components, which are reusable building blocks for creating web applications. Components encapsulate the HTML, CSS, and TypeScript code needed to define a specific part of a web page, making it easier to manage and maintain complex applications. Angular also includes a powerful dependency injection system, which helps manage the dependencies between different parts of an application and promotes code reusability. Additionally, Angular provides tools for routing, form handling, and state management, making it a versatile framework for building a wide range of web applications.
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+Learn more from the following resources:
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+- [@official@ Angular website](https://angularjs.org/)