docker: the docker image will now contain just the static binary

Docker.md

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+# docker run
+
+To run docker image:
+```docker run -p 9000:9000 minio/minio:latest```
+
+This will start minio server in the docker container, the data however is not persistent.
+If you need persistent storage you can use the command:
+
+```docker run -p 9000:9000 -v /home/krishna/.minio:/.minio -v /home/user/export:/export minio:latest```
+
+Here the data uploaded to the minio server will be persisted to /home/user/export directory.
+
+# docker build
+
+To build the docker image:
+```make dockerimage TAG="<tag>"```