README.md in devise-security-0.14.0.rc1 vs README.md in devise-security-0.14.0

@@ -184,10 +184,10 @@
   t.string :password_archivable_type, null: false
   t.integer :password_archivable_id, null: false
   t.string :password_salt # Optional. bcrypt stores the salt in the encrypted password field so this column may not be necessary.
   t.datetime :created_at
 end
-add_index :old_passwords, [:password_archivable_type, :password_archivable_id], name: :index_password_archivable
+add_index :old_passwords, [:password_archivable_type, :password_archivable_id], name: 'index_password_archivable'
 ```
 
 ### Session limitable
 
 ```ruby