README.md in zold-ruby-sdk-0.1.0 vs README.md in zold-ruby-sdk-0.2.0

@@ -9,23 +9,27 @@
 
 [![Build Status](https://travis-ci.org/zold-io/zold-ruby-sdk.svg)](https://travis-ci.org/zold-io/zold-ruby-sdk)
 [![PDD status](http://www.0pdd.com/svg?name=zold-io/zold-ruby-sdk)](http://www.0pdd.com/p?name=zold-io/zold-ruby-sdk)
 [![Gem Version](https://badge.fury.io/rb/zold-ruby-sdk.svg)](http://badge.fury.io/rb/zold-ruby-sdk)
 [![Test Coverage](https://img.shields.io/codecov/c/github/zold-io/zold-ruby-sdk.svg)](https://codecov.io/github/zold-io/zold-ruby-sdk?branch=master)
+[![Yard Docs](http://img.shields.io/badge/yard-docs-blue.svg)](http://rubydoc.info/github/zold-io/zold-ruby-sdk/master/frames)
 
+[![License](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/yegor256/takes/blob/master/LICENSE.txt)
+[![Hits-of-Code](https://hitsofcode.com/github/zold-io/zold-score)](https://hitsofcode.com/view/github/zold-io/zold-ruby-sdk)
+
 Here is the [White Paper](https://papers.zold.io/wp.pdf).
 
 Join our [Telegram group](https://t.me/zold_io) to discuss it all live.
 
-The license is [MIT](https://github.com/zold-io/zold-ruby-sdk/blob/master/LICENSE.txt).
-
 This is a simple Ruby SDK for making payments, checking balances, and finding transactions in
 Zold wallets via [WTS](https://wts.zold.io) system.
 
+There are other languages too: [Java SDK](https://github.com/amihaiemil/zold-java-client).
+
 First, you install it:
 
-```
+```bash
 gem install zold-ruby-sdk
 ```
 
 Then, you get your API key [here](https://wts.zold.io/api).
 
@@ -61,18 +65,18 @@
 txns = wts.find(id: '123', details: /pizza/)
 ```
 
 That's it.
 
-# How to contribute
+## How to contribute
 
 Read [these guidelines](https://www.yegor256.com/2014/04/15/github-guidelines.html).
 Make sure you build is green before you contribute
 your pull request. You will need to have [Ruby](https://www.ruby-lang.org/en/) 2.3+ and
 [Bundler](https://bundler.io/) installed. Then:
 
 ```
 $ bundle update
-$ rake
+$ bundle exec rake
 ```
 
 If it's clean and you don't see any error messages, submit your pull request.