Add help text to new/edit actions

config/locales/en.yml

@@ -666,6 +666,7 @@ en:
   error_templates:
     hints:
       signature: "A regular expression in Ruby syntax without leading and trailing \"/\""
+      hint_templates: 'Attribute names in {{double curly braces}} are replaced by the corresponding attribute value at runtime, e.g. "The error occurs in line {{Line}}." --(StructuredError: {Line: 4})--> "The error occurs in line 4."'
     attributes: "Attributes"
     add_attribute: "Add attribute"
   comments: