add apostrophe to avoid automatic shell lookup

Author: m3co-code

book/installation.rst

@@ -60,7 +60,7 @@ and then get the Symfony CMF code with it (this may take a while):
 
 .. code-block:: bash
 
-    $ composer create-project symfony-cmf/standard-edition <path-to-install> ~1.2
+    $ composer create-project symfony-cmf/standard-edition <path-to-install> '~1.2'
     $ cd <path-to-install>
 
 .. note::

cookbook/editions/cmf_sandbox.rst

@@ -48,7 +48,7 @@ and then get the Symfony CMF code with it (this may take a while):
 
 .. code-block:: bash
 
-    $ composer create-project --no-install symfony-cmf/sandbox <path-to-install> ~1.2
+    $ composer create-project --no-install symfony-cmf/sandbox <path-to-install> '~1.2'
     $ cd <path-to-install>
 
 Getting the Sandbox Code: GIT

quick_tour/the_big_picture.rst

@@ -45,7 +45,7 @@ The best way to download the Symfony CMF Standard Edition is using Composer_:
 
 .. code-block:: bash
 
-    $ composer create-project symfony-cmf/standard-edition cmf ~1.2
+    $ composer create-project symfony-cmf/standard-edition cmf '~1.2'
 
 Setting up the Database
 ~~~~~~~~~~~~~~~~~~~~~~~