Anne Henmi b03b9df4d4 docs: clarify that node promote/demote must be executed from a manager

Fixed wording per https://github.com/docker/docker.github.io/issues/7281

Signed-off-by: Anne Henmi <anne.henmi@docker.com>

Update node_promote.md

2018-12-21 10:09:52 -07:00

title, description, keywords

title	description	keywords
node promote	The node promote command description and usage	node, promote

node promote

Usage:  docker node promote NODE [NODE...]

Promote one or more nodes to manager in the swarm

Options:
      --help   Print usage

Description

Promotes a node to manager. This command can only be executed on a manager node.

$ docker node promote <node name>