diff --git a/DependenyInjection/DependencyInjection.php b/DependenyInjection/DependencyInjection.php
index 896527c..e4693e9 100644
--- a/DependenyInjection/DependencyInjection.php
+++ b/DependenyInjection/DependencyInjection.php
@@ -6,14 +6,14 @@ namespace DesignPatterns;
  * Dependency Injection
  *
  * Purpose:
- * to implement a loosely coupled architecture in order to get better testable, maintainable and extandable code
+ * to implement a loosely coupled architecture in order to get better testable, maintainable and extendable code
  * 
  * Examples:
  * - the Doctrine2 ORM uses dependency injection e.g. for Configuration that is injected into a Connection object. for
  *   testing purposes, one can easily create a mock object of the configuration and inject that into the connection
  *   object
  * - Symfony and Zend Framework 2 already have containers for DI that create objects via a configuration array and
- *   inject them where needed
+ *   inject them where needed (i.e. in Controllers)
  *
  */
 class Configuration
@@ -60,4 +60,4 @@ class Connection
         $host = $this->_configuration->getHost();
         // ...
     }
-}
\ No newline at end of file
+}