readme tweaks

README.rst

@@ -53,7 +53,7 @@ OR install it yourself as::
 Configuration
 =============
 
-In your app initialization, just create a file with a code something like this:
+In your app initialization, you can do something like the following:
 
     >>> require 'urbanairship'
     >>> Urbanairship.configure do |config|
@@ -63,11 +63,12 @@ In your app initialization, just create a file with a code something like this:
 
 
 Available Configurations
-========================
+------------------------
 
 - **log_path**: Allows to define the folder where the log file will be created (the default is nil).
 - **log_level**: Allows to define the log level and only messages at that level or higher will be printed (the default is INFO).
 
+
 Usage
 =====