Fixed error in admin.py

Edited the fieldset for ArtistAdmin as a space is accidentally add between monthly_listeners, causing an error when running the server.

layvillanueva_music/homepage/admin.py

@@ -15,7 +15,7 @@ class ArtistAdmin(admin.ModelAdmin):
     fieldsets = [
         ('Artist Information', {
             'fields': [
-                ('artist_name','birth_name'), 'monthly_ listeners', 'bio'
+                ('artist_name','birth_name'), 'monthly_listeners', 'bio'
             ]
         })
     ]