[symfony#2100] Partially clarifying information about URLs and document roots

Author: weaverryan

quick_tour/the_big_picture.rst

@@ -91,15 +91,21 @@ URL to see the diagnostics for your machine:
 
 .. note::
 
-    All of the example URLs assume that you've downloaded and unzipped Symfony
+    All of the example URLs assume that you've downloaded and unzipped ``Symfony``
     directly into the web server web root. If you've followed the directions
-    above and unzipped the `Symfony` directory into your web root, then add
-    `/Symfony/web` after `localhost` for all the URLs you see:
+    above and done this, then add ``/Symfony/web`` after ``localhost`` for all
+    the URLs you see:
 
     .. code-block:: text
 
         http://localhost/Symfony/web/config.php
 
+    To get nice and short urls you should point the document root of your
+    webserver or virtual host to the ``Symfony/web/`` directory. In that
+    case, your URLs will look like ``http://localhost/config.php`` or
+    ``http://site.local/config.php``, if you created a virtual host to a
+    local domain called, for example, ``site.local``.
+
 If there are any outstanding issues listed, correct them. You might also tweak
 your configuration by following any given recommendations. When everything is
 fine, click on "*Bypass configuration and go to the Welcome page*" to request