message: docs: typo fix
  PR Close
diff: @@ -66,7 +66,7 @@ This section walks you through using the `CartService` to add a product to the c
  The `addToCart()` method does the following:
  * Takes the current `product` as an argument.
  - * Uses the `CartService` `addToCart()` method to add the product the cart.
  + * Uses the `CartService` `addToCart()` method to add the product to the cart.
  * Displays a message that you've added a product to the cart.
  1. In `product-details.component.html`, add a button with the label **Buy**, and bind the `click()` event to the `addToCart()` method.
  