Update 2.3_Association.md Improve assignment flow by reordering tasks

2.3_Association.md

@@ -264,19 +264,22 @@ Books by Author "Jane Doe":
 Title: "Data Structures and Algorithms", Year: 2018
 ```
 
-**Task 2: Book Borrowing System**
+---
 
-Enhance the `Library` class to include a book borrowing system. Add the following methods:
+## Task 2: Book Availability Check
 
-- `borrowBook(String title)`: This method should simulate a book being borrowed. It should remove the book from the library's collection if available.
+Enhance the `Library` class by adding a method to check the availability of a specific book by its title.
 
-- `returnBook(Book book)`: This method should simulate a book being returned to the library. It should add the book back to the library's collection.
+- `isBookAvailable(String title)`: This method should return a `boolean` indicating whether the book with the specified title is available in the library.
 
-**Task 3: Book Availability Check**
+---
 
-Add a method to the `Library` class to check the availability of a specific book by its title:
+## Task 3: Book Borrowing System
 
-- `isBookAvailable(String title)`: This method should return a boolean indicating whether the book with the specified title is available in the library.
+Further enhance the `Library` class to include a book borrowing system.
+
+- `borrowBook(String title)`: This method should simulate a book being borrowed. It should remove the book from the library's collection if it is available. **(Hint: You can use your `isBookAvailable` method from Task 2 to check this first!)**
+- `returnBook(Book book)`: This method should simulate a book being returned. It should add the book back to the library's collection.
 
 **Task 4: Book Ratings and Reviews**