Add and Delete Books to Awesome books

[braincee]

In this pull request, the following requirements were implemented:

• My partner and I created a collection that keeps a list of books (hint: you can use an array of objects for that).

• My partner and I created a function to add a new book to the collection, with title and author.

• My partner and I created a function to remove a book from the collection.

• My partner and I displayed all books saved in the collection at the top part of the page.

• My partner and I made sure that when a user clicks the "Add" button:

  • a new book is added to the collection.
  • it displays a new book on the page.

• My partner and I made sure that when a user clicks the "Remove" button:

  • The correct book is removed from the collection.
  • The correct book disappears from the page.
  • Make sure that data is preserved in the browser's memory by using local storage.

[braincee]

Thank very much, @prolajumokeoni and @jodrack07