Add a note about network templates
Add a note about network templates

Change-Id: Id1c3b5433f920a1a4a999523b2179acee58224ff
Related-Bug: #1514365

stackforge/fuel-plugin-influxdb-grafana,stackforge/fuel-plugin-influxdb-grafana,stackforge/fuel-plugin-influxdb-grafana,stackforge/fuel-plugin-influxdb-grafana