updated seed for customer

db/migrate/20170403135121_create_customers.rb

@@ -4,7 +4,7 @@ class CreateCustomers < ActiveRecord::Migration[5.1]
       t.string :customer_id, :limit => 16, :primary_key => true #custom foreign_key to prevent conflict during sync
       t.string :name, :null => false
       t.string :company
-      t.string :contact_no
+      t.string :contact_no, :unique => true
       t.string :email
       t.date   :date_of_birth
       t.string :membership_id

db/migrate/20170530072247_create_shops.rb

@@ -9,7 +9,7 @@ class CreateShops < ActiveRecord::Migration[5.1]
       t.string :state, :null => false
       t.string :country, :null => false
       t.string :phone_no, :null => false
-      t.string :reserviation_no, :null => false
+      t.string :reservation_no, :null => false
       t.string :license, :null => false
       t.datetime :activated_at, :null => false
       t.text :license_data, :null => false