diff --git a/CHANGELOG.md b/CHANGELOG.md
index b42cadd..9405eb2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master (unreleased)
 
+## 0.2.0 (2019-11-17)
+
 ### Added
 
 - Generate Functions with Yard doc comments. (`Ginny::Func`)
diff --git a/README.md b/README.md
index da6cc19..cd7e3b4 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,18 @@
 # Ginny
 
+[![Gem](https://img.shields.io/gem/v/ginny)](https://rubygems.org/gems/ginny)
 [![Build Status](https://travis-ci.org/tcd/gql.svg?branch=master)](https://travis-ci.org/tcd/gql)
 [![Coverage Status](https://coveralls.io/repos/github/tcd/ginny/badge.svg?branch=master)](https://coveralls.io/github/tcd/ginny?branch=master)
 [![Documentation](http://img.shields.io/badge/docs-rubydoc.org-blue.svg)](https://rubydoc.org/github/tcd/ginny/master)
 [![GitHub](https://img.shields.io/github/license/tcd/ginny)](https://github.com/tcd/ginny/blob/master/LICENSE.txt)
-
-<!-- [![Inline docs](http://inch-ci.org/github/tcd/ginny.svg?branch=master&style=shields)](http://inch-ci.org/github/tcd/ginny)
-[![Gem Version](https://badge.fury.io/rb/ginny.svg)](https://badge.fury.io/rb/ginny) -->
+<!-- [![Inline docs](http://inch-ci.org/github/tcd/ginny.svg?branch=master&style=shields)](http://inch-ci.org/github/tcd/ginny) -->
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'ginny'
+gem "ginny"
 ```
 
 And then execute:
@@ -28,10 +27,102 @@ Or install it yourself as:
 gem install ginny
 ```
 
-## Development
+## Usage
+
+### From the command line
+
+```yaml
+# person.yml
+---
+name: Human
+description: "This class models a person."
+attrs:
+- name: Name
+  type: String
+- name: Age
+  description: Number of years the human has been alive.
+  type: Integer
+  read_only: true
+```
+
+```shell
+$ ginny person.yml
+```
+
+### From Ruby code
+
+```ruby
+require "ginny"
+
+data = {
+  name: "Human",
+  description: "This class models a person.",
+  parent: "Mammal"
+  attrs: [
+    { name: "name", type: "String" },
+    { name: "age",  type: "Integer" read_only: true, description: "Number of years the human has been alive." }
+  ]
+}
+
+c = Ginny::Class.create(data)
+c.render() #=> Returns the generated code as a string.
+c.generate() #=> Writes the generated code to a given folder, or the current directory if no argument is passed.
+```
+
+```ruby
+# human.rb
+
+# This class models a person.
+class Human < Mammal
+  # @return [String]
+  attr_accessor :name
+  # Number of years the human has been alive.
+  # @return [Integer]
+  attr_reader :age
+end
+```
+
+## Supported Arguments
+
+### Class (`Ginny::Class`)
+
+|    Name     |         Type         |                          Description                           |
+| ----------- | -------------------- | -------------------------------------------------------------- |
+| name        | `String`             | Name of the class.                                             |
+| description | `String`             | Description of the class. [Markdown][markdown] is supported.   |
+| parent      | `String`             | Name of a class to inherit from. (Ex: `YourNewClass < Parent`) |
+| attrs       | `Array<Ginny::Attr>` | An array of Attrs.                                             |
+
+### Attribute (`Ginny::Attr`)
+
+|    Name     |   Type    |                                                       Description                                                        |
+| ----------- | --------- | ------------------------------------------------------------------------------------------------------------------------ |
+| name        | `String`  | Name of the attribute.                                                                                                   |
+| description | `String`  | Description of the attribute. [Markdown](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet) is supported. |
+| type        | `String`  | [Type](https://rubydoc.info/gems/yard/file/docs/GettingStarted.md#Declaring_Types) of the attribute.                     |
+| default     | `Any`     | Default value for the attribute; set in it's Class's `initialize` function.                                              |
+| read_only   | `Boolean` | If `true`, an `attr_reader` will be generated for the attribute instead of an `attr_accessor`.                           |
+
+### Function (`Ginny::Func`)
+
+|    Name     |         Type          |                                                Description                                                 |
+| ----------- | --------------------- | ---------------------------------------------------------------------------------------------------------- |
+| name        | `String`              | Name of the function.                                                                                      |
+| description | `String`              | Description of the function. [Markdown][markdown] is supported.                                            |
+| return_type | `String`              | Return [type](https://rubydoc.info/gems/yard/file/docs/GettingStarted.md#Declaring_Types) of the function. |
+| body        | `String`              |                                                                                                            |
+| params      | `Array<Ginny::Param>` | An array of Params.                                                                                        |
+
+### Parameter (`Ginny::Param`)
 
-After checking out the repo, run `bin/setup` to install dependencies. 
-Then, run `rake test` to run the tests. 
+|    Name     |   Type    |                                                     Description                                                      |
+| ----------- | --------- | -------------------------------------------------------------------------------------------------------------------- |
+| name        | `String`  | Name of the param.                                                                                                   |
+| description | `String`  | Description of the param. [Markdown](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet) is supported. |
+| type        | `String`  | [Type](https://rubydoc.info/gems/yard/file/docs/GettingStarted.md#Declaring_Types) of the param.                     |
+| default     | `Any`  | Default value for the param. Set `optional` as `true` for a default `nil` value.                                     |
+| optional    | `Boolean` | If `true`, the default value will be `nil`.                                                                          |
+| keyword     | `Boolean` | If `true`, the param will be generated as a [keyword argument](https://bugs.ruby-lang.org/issues/14183).             |
 
 ## Contributing
 
diff --git a/ginny.gemspec b/ginny.gemspec
index 174a7ee..d07c3a5 100644
--- a/ginny.gemspec
+++ b/ginny.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
     "allowed_push_host" => "TODO: Set to 'http://mygemserver.com'",
     "homepage_uri" => spec.homepage,
     "source_code_uri" => spec.homepage,
-    "changelog_uri" => spec.homepage,
+    "changelog_uri" => "https://github.com/tcd/ginny/blob/master/CHANGELOG.md",
     "yard.run" => "yri", # use "yard" to build full HTML docs.
   }