Merge pull request #984 from minio/harshavardhana-patch-1

Update Docker.md

Docker.md

@@ -6,9 +6,9 @@ To run docker image:
 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```
+```docker run -p 9000:9000 -v ${HOME}/.minio:/.minio -v ${HOME}/export:/export minio:latest```
 
-Here the data uploaded to the minio server will be persisted to /home/user/export directory.
+Here the data uploaded to the minio server will be persisted to ${HOME}/export directory.
 
 # docker build