Updated the docker build docs (prebid#754)

* Updated the docker build docs.

* Updated dockerfile maintainer.

Author: dbemiller

Dockerfile

@@ -9,7 +9,7 @@ RUN go build .
 
 
 FROM alpine:3.8 AS release
-MAINTAINER Dave Bemiller <dbemiller@appnexus.com>
+MAINTAINER Hans Hjort <hans.hjort@xandr.com>
 WORKDIR /usr/local/bin/
 COPY --from=build /go/src/github.com/prebid/prebid-server/prebid-server .
 COPY static static/

docs/developers/deployment.md

@@ -8,7 +8,6 @@ optimized to create [lightweight containers](https://blog.codeship.com/building-
 [Install Docker](https://www.docker.com/community-edition#/download) and build a container:
 
 ```bash
-CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w' .
 docker build -t prebid-server .
 ```