add public_key field to ServiceAdmin
diff --git a/xos/core/admin.py b/xos/core/admin.py
index 50f3f53..69cae61 100644
--- a/xos/core/admin.py
+++ b/xos/core/admin.py
@@ -756,7 +756,7 @@
 class ServiceAdmin(XOSBaseAdmin):
     list_display = ("backend_status_icon","name","kind","versionNumber","enabled","published")
     list_display_links = ('backend_status_icon', 'name', )
-    fieldList = ["backend_status_text","name","kind","description","versionNumber","enabled","published","view_url","icon_url"]
+    fieldList = ["backend_status_text","name","kind","description","versionNumber","enabled","published","view_url","icon_url","public_key"]
     fieldsets = [(None, {'fields': fieldList, 'classes':['suit-tab suit-tab-general']})]
     inlines = [ServiceAttrAsTabInline,SliceInline,ProviderTenantInline,SubscriberTenantInline]
     readonly_fields = ('backend_status_text', )