Like a Product

**As a** customer,
   **I need** the ability to "Like" a product in the catalog,
   **So that** I can express my interest and receive updates about it.
   
 ### Details and Assumptions
 * [document what you know]
   
 ### Acceptance Criteria  
   
   ```gherkin
   Given a product page,
   When I click the "Like" button for a product,
   Then the product's like count should increase by one.
   ```