fixxed code block

Author: OskarStark

create_framework/http-foundation.rst

@@ -121,7 +121,7 @@ To use this component, add it as a dependency of the project:
 
 Running this command will also automatically download the Symfony
 HttpFoundation component and install it under the ``vendor/`` directory.
-A ``composer.json`` and a ``composer.lock`` file will be generated as well
+A ``composer.json`` and a ``composer.lock`` file will be generated as well:
 
 .. code-block::