Bump gem version and update docs

CHANGELOG.md

@@ -4,8 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/),
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
-## Unreleased
-[Diff](https://github.com/epistrephein/rarbg/compare/v1.4.0...master)
+## 2.0.0 - 2020-01-22
+[RubyGems](https://rubygems.org/gems/rarbg/versions/2.0.0) |
+[Release](https://github.com/epistrephein/rarbg/releases/tag/v2.0.0) |
+[Diff](https://github.com/epistrephein/rarbg/compare/v1.4.0...v2.0.0)
 
 #### Changed
 - Update Faraday to v1.0 and drop `faraday_middleware` dependency ([#17](https://github.com/epistrephein/rarbg/pull/17)).

README.md

@@ -20,7 +20,7 @@ $ gem install rarbg
 Or add it to your Gemfile and execute `bundle install`
 
 ```ruby
-gem 'rarbg', '~> 1.4'
+gem 'rarbg', '~> 2.0'
 ```
 
 ## Usage

docs/RARBG.html

@@ -6,7 +6,7 @@
 <title>
   Module: RARBG
 
-    &mdash; Documentation by YARD 0.9.19
+    &mdash; Documentation by YARD 0.9.20
 
 </title>
 
@@ -129,7 +129,7 @@ <h2>
 
 </div>
         </dt>
-        <dd><pre class="code"><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>1.4.0</span><span class='tstring_end'>&#39;</span></span></pre></dd>
+        <dd><pre class="code"><span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>2.0.0</span><span class='tstring_end'>&#39;</span></span></pre></dd>
 
         <dt id="CATEGORIES-constant" class="">CATEGORIES =
           <div class="docstring">
@@ -185,9 +185,9 @@ <h2>
 </div>
 
       <div id="footer">
-  Generated on Wed Jun  5 07:42:54 2019 by
+  Generated on Wed Jan 22 11:06:00 2020 by
   <a href="http://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>
-  0.9.19 (ruby-2.6.3).
+  0.9.20 (ruby-2.6.5).
 </div>
 
     </div>