Need the ability to update a product in the catalog

**As a** Admin
**I need** the ability to update a product in the catalog
**So That** I can make changes to the product as required

Assumptions and Dependencies:
* [document what you know]

Acceptance Tests:
```gherkin
   Given a product is available in the catalog
   When its information (e.g. price) is updated
   Then new information for the product shows up
```
