Fix the link to Cluster Template in quickstart
Fix the link to Cluster Template in quickstart

In "dev quickstart" section "Setup Dev Environment" link to
templates refer to obsolete page "bay-template-example.html"

Fix this with proper link for cluster templates.

Change-Id: I2202e20eee09eeee6d7c4bcd96af10b93c72474b
Closes-Bug: #1692821

openstack/magnum,openstack/magnum,ArchiFleKs/magnum,ArchiFleKs/magnum