fix typo (#100)

Author: mattieserver

netbox_topology_views/__init__.py

@@ -12,7 +12,7 @@ class TopologyViewsConfig(PluginConfig):
     default_settings = {
         'preselected_device_roles': ['Firewall', 'Router', 'Distribution Switch', 'Core Switch', 'Internal Switch', 'Access Switch', 'Server', 'Storage', 'Backup', 'Wireless AP'],
         'ignore_cable_type': ['power outlet','power port'],
-        'device_img': ['access-switch', 'core-switch', 'firewall', 'router', 'distribution-switch', 'backup', 'storage,wan-network', 'wireless-ap', 'server', 'internal-switch', 'isp-cpe-material', 'non-racked-devices', 'power-units'],
+        'device_img': ['access-switch', 'core-switch', 'firewall', 'router', 'distribution-switch', 'backup', 'storage', 'wan-network', 'wireless-ap', 'server', 'internal-switch', 'isp-cpe-material', 'non-racked-devices', 'power-units'],
         'allow_coordinates_saving': False,
         'preselected_tags' : [],
         'enable_circuit_terminations': False,