Merge pull request symfony#1879 from gregquat/patch-5

Component>DI>Workflow Adding missing word

Author: weaverryan

components/dependency_injection/workflow.rst

@@ -25,7 +25,7 @@ Before building it, the kernel checks to see if a cached version of the containe
 exists. The ``HttpKernel`` has a debug setting and if this is false, the
 cached version is used if it exists. If debug is true then the kernel
 :doc:`checks to see if configuration is fresh</components/config/caching>`
-and if it is, the cached version of the container is. If not then the container
+and if it is, the cached version of the container is used. If not then the container
 is built from the application-level configuration and the bundles's extension
 configuration.