updated readme

database/migrations/2018_06_09_014605_make_usd_nullable_in_booking_table.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class MakeUsdNullableInBookingTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('bookings', function($table)
+        {
+            $table->double('usd_book_amount', 50)->nullable()->change();
+            $table->string('usd_book_pay_method')->nullable()->change();
+            $table->string('usd_book_company_name')->nullable()->change();
+            $table->string('usd_book_company_address')->nullable()->change();
+            $table->string('usd_book_swift_code')->nullable()->change();
+            $table->string('usd_book_cnap')->nullable()->change();
+            $table->string('usd_book_bank_branch')->nullable()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        //
+    }
+}