Merge branch '6.4' into 7.0

* 6.4:
  Fix the toctree syntax of some content
  be more specific about bool env var processor

Author: javiereguiluz

configuration/env_var_processors.rst

@@ -104,8 +104,9 @@ Symfony provides the following env var processors:
             };
 
 ``env(bool:FOO)``
-    Casts ``FOO`` to a bool (``true`` values are ``'true'``, ``'on'``, ``'yes'``
-    and all numbers except ``0`` and ``0.0``; everything else is ``false``):
+    Casts ``FOO`` to a bool (``true`` values are ``'true'``, ``'on'``, ``'yes'``,
+    all numbers except ``0`` and ``0.0`` and all numeric strings except ``'0'``
+    and ``'0.0'``; everything else is ``false``):
 
     .. configuration-block::
 

index.rst

@@ -85,4 +85,7 @@ Create your Own Framework
 
 Want to create your own framework based on Symfony?
 
-.. include:: /create_framework/map.rst.inc
+.. toctree::
+   :maxdepth: 2
+
+   create_framework/index