Add DigitalOcean button to README

Author: deansheather

README.md

@@ -23,6 +23,8 @@ docker run -it -p 127.0.0.1:8443:8443 -v "${PWD}:/home/coder/project" codercom/c
 
 ## Getting Started
 
+[![Create a Droplet](./doc/assets/do-new-droplet-btn.svg)](https://marketplace.digitalocean.com/apps/code-server?action=deploy)
+
 ### Run over SSH
 
 Use [sshcode](https://github.com/codercom/sshcode) for a simple setup.