fixed docs titles

doc/index.rst

-Silex
-=====
+The Book
+========
 
 .. toctree::
     :maxdepth: 1

doc/providers/doctrine.rst

-DoctrineServiceProvider
-=======================
+Doctrine
+========
 
 The *DoctrineServiceProvider* provides integration with the `Doctrine DBAL
 <http://www.doctrine-project.org/projects/dbal>`_ for easy database access

doc/providers/form.rst

-FormServiceProvider
-===================
+Form
+====
 
 The *FormServiceProvider* provides a service for building forms in
 your application with the Symfony Form component.

doc/providers/http_cache.rst

-HttpCacheServiceProvider
-========================
+HTTP Cache
+==========
 
 The *HttpCacheServiceProvider* provides support for the Symfony Reverse
 Proxy.

doc/providers/http_fragment.rst

-HttpFragmentServiceProvider
-===========================
+HTTP Fragment
+=============
 
 The *HttpFragmentServiceProvider* provides support for the Symfony fragment
 sub-framework, which allows you to embed fragments of HTML in a template.

doc/providers/index.rst

-Silex
-=====
+Built-in Service Providers
+==========================
 
 .. toctree::
     :maxdepth: 1

doc/providers/monolog.rst

-MonologServiceProvider
-======================
+Monolog
+=======
 
 The *MonologServiceProvider* provides a default logging mechanism through
 Jordi Boggiano's `Monolog <https://github.com/Seldaek/monolog>`_ library.

doc/providers/remember_me.rst

-RememberMeServiceProvider
-=========================
+Remember Me
+===========
 
 The *RememberMeServiceProvider* adds "Remember-Me" authentication to the
 *SecurityServiceProvider*.

doc/providers/security.rst

-SecurityServiceProvider
-=======================
+Security
+========
 
 The *SecurityServiceProvider* manages authentication and authorization for
 your applications.

doc/providers/serializer.rst

-SerializerServiceProvider
-===========================
+Serializer
+==========
 
 The *SerializerServiceProvider* provides a service for serializing objects.
 

doc/providers/service_controller.rst

-ServiceControllerServiceProvider
-================================
+Service Controllers
+===================
 
 As your Silex application grows, you may wish to begin organizing your
 controllers in a more formal fashion. Silex can use controller classes out of

doc/providers/session.rst

-SessionServiceProvider
-======================
+Session
+=======
 
 The *SessionServiceProvider* provides a service for storing data persistently
 between requests.

doc/providers/swiftmailer.rst

-SwiftmailerServiceProvider
-==========================
+Swiftmailer
+===========
 
 The *SwiftmailerServiceProvider* provides a service for sending email through
 the `Swift Mailer <http://swiftmailer.org>`_ library.

doc/providers/translation.rst

-TranslationServiceProvider
-==========================
+Translation
+===========
 
 The *TranslationServiceProvider* provides a service for translating your
 application into different languages.

doc/providers/twig.rst

-TwigServiceProvider
-===================
+Twig
+====
 
 The *TwigServiceProvider* provides integration with the `Twig
 <http://twig.sensiolabs.org/>`_ template engine.

doc/providers/url_generator.rst

-UrlGeneratorServiceProvider
-===========================
+URL Generator
+=============
 
 The *UrlGeneratorServiceProvider* provides a service for generating URLs for
 named routes.

doc/providers/validator.rst

-ValidatorServiceProvider
-========================
+Validator
+=========
 
 The *ValidatorServiceProvider* provides a service for validating data. It is
 most useful when used with the *FormServiceProvider*, but can also be used