README.md in twitter_friendly-1.2.0 vs README.md in twitter_friendly-1.2.1

@@ -3,28 +3,29 @@
 [![Gem Version](https://badge.fury.io/rb/twitter_friendly.png)](https://badge.fury.io/rb/twitter_friendly)
 [![Build Status](https://travis-ci.org/ts-3156/twitter_friendly.svg?branch=master)](https://travis-ci.org/ts-3156/twitter_friendly)
 
 The twitter_friendly is a gem to crawl many friends/followers with minimal code. When you want to get a list of friends/followers for a user, all you need to write is the below.
 
-```
+```ruby
 require 'twitter_friendly'
 
 client =
     TwitterFriendly::Client.new(
-        consumer_key: 'CONSUMER_KEY',
-        consumer_secret: 'CONSUMER_SECRET',
-        access_token: 'ACCESS_TOKEN',
+        consumer_key:        'CONSUMER_KEY',
+        consumer_secret:     'CONSUMER_SECRET',
+        access_token:        'ACCESS_TOKEN',
         access_token_secret: 'ACCESS_TOKEN_SECRET',
-        expires_in: 86400 # 1day
+        expires_in:          86400 # 1day
     )
 
 ids = []
 
 begin
   ids = client.follower_ids('yousuck2020')
 rescue Twitter::Error::TooManyRequests => e
-  sleep client.rate_limit.follower_ids[:reset_in]
+  seconds = e.rate_limit.reset_in.to_i # or client.rate_limit.follower_ids[:reset_in]
+  sleep seconds
   retry
 end
 
 puts "ids #{ids.size}"
 File.write('ids.txt', ids.join("\n"))
@@ -42,24 +43,24 @@
 gem 'twitter_friendly'
 ```
 
 And then execute:
 
-```sh
+```bash
 $ bundle
 ```
 
 Or install it yourself as:
 
-```sh
+```bash
 $ gem install twitter_friendly
 ```
 
 ## Configuration
 
 You can pass configuration options as a block to `TwitterFriendly::Client.new` just like the below.
 
-```
+```ruby
 client = TwitterFriendly::Client.new do |config|
   config.consumer_key        = "YOUR_CONSUMER_KEY"
   config.consumer_secret     = "YOUR_CONSUMER_SECRET"
   config.access_token        = "YOUR_ACCESS_TOKEN"
   config.access_token_secret = "YOUR_ACCESS_SECRET"