Reorder layers to be MVC in README.md

Right now the headings align as "MCV" after previously mentioning "MVC"
Reorder the headings to make this parallel

Author: grepsedawk

README.md

@@ -28,6 +28,14 @@ Although most Rails models are backed by a database, models can also be ordinary
 Ruby classes, or Ruby classes that implement a set of interfaces as provided by
 the [Active Model](activemodel/README.rdoc) module.
 
+## View layer
+
+The _**View layer**_ is composed of "templates" that are responsible for providing
+appropriate representations of your application's resources. Templates can
+come in a variety of formats, but most view templates are HTML with embedded
+Ruby code (ERB files). Views are typically rendered to generate a controller response
+or to generate the body of an email. In Rails, View generation is handled by [Action View](actionview/README.rdoc).
+
 ## Controller layer
 
 The _**Controller layer**_ is responsible for handling incoming HTTP requests and
@@ -38,14 +46,6 @@ In Rails, incoming requests are routed by Action Dispatch to an appropriate cont
 controller classes are derived from `ActionController::Base`. Action Dispatch and Action Controller
 are bundled together in [Action Pack](actionpack/README.rdoc).
 
-## View layer
-
-The _**View layer**_ is composed of "templates" that are responsible for providing
-appropriate representations of your application's resources. Templates can
-come in a variety of formats, but most view templates are HTML with embedded
-Ruby code (ERB files). Views are typically rendered to generate a controller response
-or to generate the body of an email. In Rails, View generation is handled by [Action View](actionview/README.rdoc).
-
 ## Frameworks and libraries
 
 [Active Record](activerecord/README.rdoc), [Active Model](activemodel/README.rdoc), [Action Pack](actionpack/README.rdoc), and [Action View](actionview/README.rdoc) can each be used independently outside Rails.