Wrapping create-project in strings on different versions

Author: weaverryan

book/installation.rst

@@ -57,7 +57,7 @@ Distribution:
 
 .. code-block:: bash
 
-    $ php composer.phar create-project symfony/framework-standard-edition /path/to/webroot/Symfony 2.3.*
+    $ php composer.phar create-project symfony/framework-standard-edition /path/to/webroot/Symfony '2.3.*'
 
 .. tip::
 

quick_tour/the_big_picture.rst

@@ -18,7 +18,7 @@ directory:
 
 .. code-block:: bash
 
-    $ composer create-project symfony/framework-standard-edition myproject/ ~2.4
+    $ composer create-project symfony/framework-standard-edition myproject/ '~2.4'
 
 .. note::