Approval.

backend/pl/user.json

@@ -130,6 +130,8 @@
         "mail_invitation_headline": "Welcome to museum-digital",
         "user_invitation_autodeletion": "The link is valid only for 72 hours. If you do not activate the account within that timespan, your account will be automatically deleted. Hence, if you do not want an account on museum-digital, you can simply ignore this mail.",
         "public_user_profiles": "Public user profiles",
-        "invite_accepted": "Invite accepted"
+        "invite_accepted": "Invite accepted",
+        "contact_person_in_museum": "Contact person in museum",
+        "contact_persons_in_museum": "Contact persons in museum"
     }
 }