README.md in infrataster-0.2.1 vs README.md in infrataster-0.2.2

@@ -75,11 +75,29 @@
   from: :proxy      # access to this machine via SSH port forwarding from proxy
 )
 
 # Code generated by `rspec --init` is following...
 ```
+Or
 
+```ruby
+# spec/spec_helper.rb
+require 'infrataster/rspec'
+
+Infrataster::Server.define(:proxy) do |server|
+    server.address = '192.168.0.0/16'
+    server.vagrant = true
+end
+Infrataster::Server.define(:app) do |server|
+    server.address = '172.16.0.0/16'
+    server.vagrant = true
+    server.from = :proxy
+end
+
+# Code generated by `rspec --init` is following...
+```
+
 Then, you can write spec files:
 
 ```ruby
 # spec/example_spec.rb
 require 'spec_helper'
@@ -248,9 +266,15 @@
 ### `pgsql_query` resource
 
 `pgsql_query` resource sends a query to PostgreSQL server.
 
 `pgsql_query` is provided by [infrataster-plugin-pgsql](https://github.com/SnehaM/infrataster-plugin-pgsql) by [@SnehaM](https://github.com/SnehaM).
+
+### `dns` resource
+
+`dns` resource send query to DNS server.
+
+`dns` is provided by [infrataster-plugin-dns](https://github.com/otahi/infrataster-plugin-dns) by [@otahi](https://github.com/otahi).
 
 ## Example
 
 * [example](example)
 * [spec/integration](spec/integration)