README.md in message_bus-2.0.0.beta.1 vs README.md in message_bus-2.0.0.beta.2

@@ -40,11 +40,11 @@
 message_id = MessageBus.publish "/channel", "message"
 
 # in another process / spot
 
 MessageBus.subscribe "/channel" do |msg|
-  # block called in a backgroud thread when message is recieved
+  # block called in a background thread when message is received
 end
 
 MessageBus.backlog "/channel", id
 # returns all messages after the id
 
@@ -212,17 +212,19 @@
 ```
 
 #### Puma
 ```ruby
 # path/to/your/config/puma.rb
+require 'message_bus'
 on_worker_boot do
   MessageBus.after_fork
 end
 ```
 
 #### Unicorn
 ```ruby
 # path/to/your/config/unicorn.rb
+require 'message_bus'
 after_fork do |server, worker|
   MessageBus.after_fork
 end
 ```