Update php.rst

The latest version of Assetic is compatible with Jsqueeze 2.x, so we do not need the version constraint any more

Author: Carlos Granados

cookbook/assetic/php.rst

@@ -33,10 +33,8 @@ directory and execute the following commands:
 .. code-block:: bash
 
     $ composer require leafo/scssphp
-    $ composer require patchwork/jsqueeze:"~1.0"
+    $ composer require patchwork/jsqueeze
 
-It's very important to maintain the ``~1.0`` version constraint for the ``jsqueeze``
-dependency because the most recent stable version is not compatible with Assetic.
 
 Organizing your Web Asset Files
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