Add Docker support

Author: surma

Dockerfile

@@ -0,0 +1,7 @@
+FROM golang:1.6-onbuild
+
+RUN mkdir /data
+VOLUME ["/data"]
+WORKDIR /data
+EXPOSE 5000
+ENTRYPOINT ["app"]

README.md

@@ -3,6 +3,7 @@ This server is for development purposes only.
 
 # Download
 
+## Binaries 
 `simplehttp2server` is `go get`-able:
 
 ```
@@ -11,13 +12,21 @@ $ go get github.com/GoogleChrome/simplehttp2server
 
 Precompiled binaries can be found in the [release section](https://github.com/GoogleChrome/simplehttp2server/releases).
 
+## Brew
 You can also install `simplehttp2server` using brew if you are on macOS:
 
 ```
 $ brew tap GoogleChrome/simplehttp2server https://github.com/GoogleChrome/simplehttp2server
 $ brew install simplehttp2server
 ```
 
+## Docker
+If you have Docker set up, you can serve the current directory via `simplehttp2server` using the following command:
+
+```
+$ docker run -p 5000:5000 -v $PWD:/data surma/simplehttp2server
+```
+
 # Push Manifest
 
 `simplehttp2server` supports the [push manifest](https://www.npmjs.com/package/http2-push-manifest).