Comments in k8s template needs update

[hongbin]

In this file https://github.com/openstack/magnum/blob/master/magnum/templates/heat-kubernetes/kubecluster.yaml , the comments for the 'kube_minions' resource group is as below:

  ######################################################################
  #
  # kubernetes minions. This is an autoscaling group that will initially
  # create <number_of_minions> minions, and will scale up to
  # <max_number_of_minions> based on CPU utilization.
  #

However, it is not correct. First, it is not autoscaling group, it is actually a resource group. Second, it won't scale based on CPU utilizaiton, it needs to be manually scaled. We need to update the comments accordingly.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/206800

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/206800
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=98207690a7a80977415a846236147ed2d2e2d7c0
Submitter: Jenkins
Branch: master

commit 98207690a7a80977415a846236147ed2d2e2d7c0
Author: vincent <email address hidden>
Date: Wed Jul 29 10:56:14 2015 +0800

    update comments in k8s template

    fix the group and scale-up description about kubernetes minions

    Closes-Bug: #1479099

    Change-Id: I611cbd9a463c711a368de6b2a75a4e7398ecd2b2