Add note about docker version requirement (#163)

* add note about multistage and docker version requirements

* use important dialogs

content/local-dev-environments/quickstart.md

@@ -29,6 +29,10 @@ To install Homebrew, simply run the following command:
 
 Docker for Mac is a Docker Community Edition (CE) version which is completely FREE. It includes everything you need to run Docker on a Mac and installed using the standard DMG/installer process.
 
+{{% dialog type="important" icon="fa fa-exclamation-triangle" title="Important" %}}
+It is recommended to install the latest Docker CE, however at a minimum Docker CE >= 17.05 is required this was the release which introduced multistage builds, more info [here](https://docs.docker.com/develop/develop-images/multistage-build/).
+{{% /dialog %}}
+
 Visit the [Docker for Mac](https://docs.docker.com/docker-for-mac/install/) site or just go ahead and directly download the [`Docker.dmg`](https://download.docker.com/mac/stable/Docker.dmg)
 
 - <https://download.docker.com/mac/stable/Docker.dmg>
@@ -39,7 +43,9 @@ After installing, you'll now see a new docker icon in your task bar.
 
 {{< img src="/assets/dbe7dad-whale-in-menu-bar.png" title="Screenshot of Task Bar Item" >}}
 
-**IMPORTANT:** Docker for Mac requires OS X El Capitan 10.11 or newer macOS release running on a 2010 or newer Mac, with Intel's hardware support for MMU virtualization.
+{{% dialog type="important" icon="fa fa-exclamation-triangle" title="Important" %}}
+Docker for Mac requires OS X El Capitan 10.11 or newer macOS release running on a 2010 or newer Mac, with Intel's hardware support for MMU virtualization.
+{{% /dialog %}}
 
 ## Configure AWS Vault