Update README.md

Author: beauby

README.md

@@ -1,5 +1,5 @@
 # jsonapi-rails
-Rails integration for [jsonapi-rb](https://github.com/jsonapi-rb/jsonapi-rb).
+Rails integration for [jsonapi-rb](http://jsonapi-rb.org).
 
 ## Status
 
@@ -18,79 +18,9 @@ And then execute:
 $ bundle
 ```
 
-## Usage
+## Usage and documentation
 
-### Serialization
-
-Example:
-```ruby
-# app/serializable/serializable_user.rb
-class SerializableUser < JSONAPI::Serializable::Resource
-  type 'users'
-
-  attribute :name
-  attribute :email do
-    "#{@object.name}@foo.bar"
-  end
-
-  has_many :posts do
-    link(:related) { @url_helpers.user_posts(@object) }
-    meta foo: :bar
-  end
-
-  has_many :comments do
-    resources do
-      @object.comments.order(:desc)
-    end
-  end
-
-  has_many :reviews, Foo::Bar::SerializableRev
-
-  link(:self) { @url_helpers.user_url(@object.id) }
-  meta do
-    { foo: 'bar' }
-  end
-end
-
-# app/controllers/users_controller.rb
-# ...
-user = User.find_by(id: id)
-render jsonapi: user, include: { posts: [:comments] }, meta: { foo: 'bar' }
-# ...
-```
-
-### Deserialization
-
-Example:
-```ruby
-class PostsController < ActionController::Base
-  deserializable_resource :post, only: [:create, :update] do
-    attribute :title
-    attribute :date
-    has_one :author do |rel, id, type|
-      field user_id: id
-      field user_type: type
-    end
-    has_many :comments
-  end
-
-  def create_params
-    params.require(:user).permit!
-  end
-
-  def create
-    create_params[:title]
-    create_params[:date]
-    create_params[:comment_ids]
-    create_params[:comment_types]
-    create_params[:user_id]
-    create_params[:user_type]
-    # ...
-  end
-end
-
-
-```
+See [jsonapi-rb.org/guides](http://jsonapi-rb.org/guides).
 
 ## License