README.md in rakuten_web_service-1.13.0 vs README.md in rakuten_web_service-1.13.1

- old
+ new

@@ -1,7 +1,7 @@
 # RakutenWebService
-
+[![CI](https://github.com/rakuten-ws/rws-ruby-sdk/workflows/CI/badge.svg)](https://github.com/rakuten-ws/rws-ruby-sdk/actions?query=workflow%3ACI+branch%3Amaster)
 [![Build Status](https://travis-ci.org/rakuten-ws/rws-ruby-sdk.svg?branch=master)](https://travis-ci.org/rakuten-ws/rws-ruby-sdk)
 [![Gem Version](https://badge.fury.io/rb/rakuten_web_service.svg)](https://badge.fury.io/rb/rakuten_web_service)
 [![Test Coverage](https://codeclimate.com/github/rakuten-ws/rws-ruby-sdk/badges/coverage.svg)](https://codeclimate.com/github/rakuten-ws/rws-ruby-sdk/coverage)
 [![Code Climate](https://codeclimate.com/github/rakuten-ws/rws-ruby-sdk/badges/gpa.svg)](https://codeclimate.com/github/rakuten-ws/rws-ruby-sdk)
 [![Gitter](https://badges.gitter.im/rakuten-ws/rws-ruby-sdk.svg)](https://gitter.im/rakuten-ws/rws-ruby-sdk?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
@@ -111,10 +111,10 @@
   items.count #=> 30. In default, the API returns up to 30 items matched with given keywords.
 
   last_items = items.page(3) # Skips first 2 pages.
 
   # Go to the last page
-  while last_items.has_next_page?
+  while last_items.next_page?
     last_items = last_items.next_page
   end
 
   # Shows the title of the last 30 items
   last_items.each do |item|