better share info

app/controllers/permissions_controller.rb

@@ -6,8 +6,13 @@ class PermissionsController < ApplicationController
     conf.create.columns = [:domain, :user_email]
     conf.update.columns = [:domain, :user_email]
     conf.columns[:user_email].form_ui = :virtual
-    conf.columns[:user_email].description = 'user\'s email address, to share with. Ex. jhon.doe@domain.com'
+    conf.columns[:user_email].description = <<-DOC
+      User's email address, to share with. Ex. jhon.doe@domain.com .
+      The selected user will be able to administer this domain,
+      including it's records, it's subdomains and their records.
+    DOC
     conf.create.link.label = 'Share Domain'
+    
     # conf.columns[:user_email].search_sql = 'user.email'
     # conf.columns[:user].search_sql = 'CONCAT(first_name, ' ', last_name)'
   end