adding teacher profiles

app/models/member.rb

@@ -7,11 +7,10 @@ class Member < ApplicationRecord
   mount_uploader :picture, PictureUploader
 
   has_many :entities
+  has_one :teacher
 
-  def admin
-    true
-  end
   def admin?
-    true
+    email == "torsten@villataika.fi"
   end
+  alias :admin :admin?
 end