README.md in qu-mongoid-0.2.0 vs README.md in qu-mongoid-0.2.1

@@ -5,12 +5,14 @@
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
-    gem 'qu'
-    gem 'qu-mongoid'
+```ruby
+gem 'qu'
+gem 'qu-mongoid'
+```
 
 And then execute:
 
     $ bundle
 
@@ -24,14 +26,22 @@
 
 Mongoid version 2 and below uses the mongo driver, so use qu-mongo if you are on Mongoid 2.
 
 ## Configuration
 
-Qu-Mongoid will automatically connect to the default session configured in mongoid.yml. If a default session is not configured, it will attempt to read from ENV['MONGOHQ_URL'] and ENV['MONGOLAB_URI'], so it should work on Heroku. If you need to use a different Mongoid connection, you can do the following:
+Qu-Mongoid will automatically connect to the default session configured in mongoid.yml. If a default session is not configured, it will attempt to read from ```ENV['MONGOHQ_URL']``` and ```ENV['MONGOLAB_URI']```, so it should work on Heroku. If you need to use a different Mongoid session, you should do the following:
 
+```ruby
+Qu.configure do |c|
+  c.backend.session = :qu
+end
+```
+
+You may also configure the Qu connection using the code below, but **WARNING**: if you are running your workers in threads, this configuration is **NOT** recommended. This is because Mongoid uses a separate connection on each thread, so only the original thread will use the configured connection. New threads will use the default Mongoid session as described above.
+
 ``` ruby
 Qu.configure do |c|
-  c.connection = Mongoid::Sessions.with_name(:qu)
+  c.connection = Mongoid::Sessions.with_name(:qu) # New threads will not use this configured connection.
 end
 ```
 
 ## Contributing