Fix document typo

docs/en/Tutorials/Part-2.md

@@ -688,7 +688,7 @@ Open `book-list.component.html` file in `books\book-list` folder and replace the
 * `abp-modal` is a pre-built component to show modals. While you could use another approach to show a modal, `abp-modal` provides additional benefits.
 * We added `New book` button to the `AbpContentToolbar`.
 
-Open `book-list.component.` file in `books\book-list` folder and replace the content as below:
+Open `book-list.component.ts` file in `books\book-list` folder and replace the content as below:
 
 ```js
 import { Component, OnInit } from '@angular/core';