Fixed minor issues

Author: javiereguiluz

cookbook/configuration/environments.rst

@@ -5,13 +5,13 @@ How to Master and Create new Environments
 =========================================
 
 Every application is the combination of code and a set of configuration that
-dictates how that code should function. The configuration may define the
-database being used, if something should be cached or how verbose
-logging should be. In Symfony, the idea of "environments" is the idea that
-the same codebase can be run using multiple different configurations. For
-example, the ``dev`` environment should use configuration that makes development
-easy and friendly, while the ``prod`` environment should use a set of configuration
-optimized for speed.
+dictates how that code should function. The configuration may define the database
+being used, if something should be cached or how verbose logging should be.
+
+In Symfony, the idea of "environments" is the idea that the same codebase can be
+run using multiple different configurations. For example, the ``dev`` environment
+should use configuration that makes development easy and friendly, while the
+``prod`` environment should use a set of configuration optimized for speed.
 
 .. index::
    single: Environments; Configuration files