Change quickstart to use https instead of ssh for checkout
@@ -27,7 +27,7 @@ Before you begin, make sure you have installed:
To checkout the Marquez source code, run:
```
-$ git clone git@github.com:MarquezProject/marquez.git && cd marquez
+$ git clone https://github.com/MarquezProject/marquez && cd marquez
```
## Marquez Data Model
