Update Dockerfile

revert back to original version to keep documentation consistent.

Dockerfile

@@ -1,16 +1,6 @@
-# install docker
-# sudo docker build -t seaweed .
-# docker run seaweed
-
-FROM golang
-
-# Copy the local package files to the container's workspace.
-ADD . /go/src/github.com/chrislusf/weed-fs
-
-# Build the weed command inside the container.
-RUN go get github.com/chrislusf/weed-fs/go/weed
-
+FROM cydev/go
+RUN go get code.google.com/p/weed-fs/go/weed
 EXPOSE 8080
 EXPOSE 9333
 VOLUME /data
-ENTRYPOINT ["/go/bin/weed"]
+ENTRYPOINT ["weed"]