Merge pull request #36 from ipanousis/master

Add doc for emitted object by docker-gen

README.md

@@ -101,6 +101,8 @@ If no `<dest>` file is specified, the output is sent to stdout.  Mainly useful f
 
 The templates used by docker-gen are written using the Go [text/template](http://golang.org/pkg/text/template/) language. In addition to the [built-in functions](http://golang.org/pkg/text/template/#hdr-Functions) supplied by Go, docker-gen provides a number of additional functions to make it simpler (or possible) to generate your desired output.
 
+Within those templates, the object emitted by docker-gen will have [this structure](https://github.com/jwilder/docker-gen/wiki/Docker-Gen-Emit-Structure).
+
 #### Functions
 
 * *`contains $map $key`*: Returns `true` if `$map` contains `$key`. Takes maps from `string` to `string`.