Feature Deck

## Create and use a new component to show info cards

### Dependent ticket. Complete and merge #3 before beginning this ticket.

**Instructions:**

In `src/App.js`, above the `` component add a new component called `Deck` which shows 3 _cards_.
The cards must link to `peoplemakeglasgow.com`, `visitmanchester.com` and `visitlondon.com`. The cards should contain the name of the city and an image of the city. There is sample data in `data/fakeCards.json`

**Test:**

- [ ] 3 info cards should be displayed on the page for each city (Glasgow, Manchester, London).
- [ ] Each card should link to the correct website.
- [ ] Each card should contain an image