Add Heat Dasbhoard to Plugin Registry
Now Heat Dashboard is ready to departure, therefore added github and
launchpad url of Heat Dashboard to Horizn's plugin registry
@@ -52,6 +52,9 @@ Plugin Registry
* - Freezer Web UI
- https://github.com/openstack/freezer-web-ui
- https://launchpad.net/freezer
+ * - Heat Dashboard
+ - https://github.com/openstack/heat-dashboard
+ - https://launchpad.net/heat-dashboard
* - Ironic UI
- https://github.com/openstack/ironic-ui
- https://launchpad.net/ironic-ui
