update readme

Author: tongueroo

README.md

@@ -39,7 +39,7 @@ Then you can hit the the [HOSTNAME]:8080/demo/Hello and to verify that Tomcat is
 
 ## Usage with UFO
 
-The ufo branch of this project provides an additional demo that takes the war artifact, builds a Docker image and deploys it to ECS.  For details please check out that branch: [ufo](https://github.com/tongueroo/demo-java/tree/ufo).
+The ufo branch of this project provides an additional demo that takes the war artifact, builds a Docker image and deploys it to ECS.  For details please check out that branch: [ufo](https://github.com/tongueroo/demo-java/tree/ufo). For more details on ufo check out the [official ufo docs](http://ufoships.com/).
 
 ## Initial Generation
 
@@ -56,3 +56,8 @@ mvn archetype:generate \
   -DartifactId=demo \
   -DarchetypeArtifactId=maven-archetype-webapp
 ```
+
+## Dependencies
+
+* docker: `brew install docker`
+* maven: `brew install maven`