Fixed a minor docs issue in a Dockerfile Example
Fixed a minor docs issue in a Dockerfile Example

The Dockerfile Instruction to create the .vnc directory results in a failure :
-storepasswd failed for file: /root/.vnc/passwd

Signed-off-by: Madhu Venugopal <d22477479bbf55ba62bd822f4112c80f292c7805@socketplane.io>

allencloud/cli,redpanda/cli,redpanda/cli,thaJeztah/cli,e11137/cli,docker/cli,riyazdf/cli,dnephin/cli,riyazdf/cli,ashfall/cli,Zebrilee/cli,docker/cli,dnephin/cli,cpuguy83/cli,ashfall/cli,e11137/cli,allencloud/cli,cpuguy83/cli,Zebrilee/cli,thaJeztah/cli