README.md in swift-1.0.0 vs README.md in swift-1.0.1

@@ -43,10 +43,11 @@
 
 ### DB
 
 ```ruby
   require 'swift'
+  require 'swift/adapter/postgres'
 
   Swift.trace true # Debugging.
   Swift.setup :default, Swift::Adapter::Postgres, db: 'swift'
 
   # Block form db context.
@@ -77,10 +78,11 @@
 Rudimentary object mapping. Provides a definition to the db methods for prepared (and cached) statements plus native
 primitive Ruby type conversion.
 
 ```ruby
   require 'swift'
+  require 'swift/adapter/postgres'
   require 'swift/migrations'
 
   Swift.trace true # Debugging.
   Swift.setup :default, Swift::Adapter::Postgres, db: 'swift'
 
@@ -112,10 +114,11 @@
 
 Record/relation level helpers.
 
 ```ruby
   require 'swift'
+  require 'swift/adapter/postgres'
   require 'swift/migrations'
 
   Swift.trace true # Debugging.
   Swift.setup :default, Swift::Adapter::Postgres, db: 'swift'
 
@@ -172,13 +175,16 @@
 
 Swift comes with a simple identity map. Just require it after you load swift.
 
 ```ruby
   require 'swift'
+  require 'swift/adapter/postgres'
   require 'swift/identity_map'
   require 'swift/migrations'
 
+  Swift.setup :default, Swift::Adapter::Postgres, db: 'swift'
+
   class User < Swift::Record
     store     :users
     attribute :id,    Swift::Type::Integer, serial: true, key: true
     attribute :age,   Swift::Type::Integer, field: 'ega'
     attribute :name,  Swift::Type::String,  field: 'eman'
@@ -211,9 +217,10 @@
 
 But you can do it almost as fast in ruby,
 
 ```ruby
   require 'swift'
+  require 'swift/adapter/mysql'
 
   Swift.setup :default, Swift::Adapter::Mysql, db: 'swift'
 
   # MySQL packet size is the usual limit, 8k is the packet size by default.
   Swift.db do |db|