 configuration settings.  The individual settings are "properties"
   of the object, which is to say, a name/value pairs.
</p>
<p>
   An object is denoted in JSON by a pair of braces surround its
   list of properties, so the first thing you add to a new, blank
   config file is that main object, with no properties defined
   inside yet:
</p>
<pre>
   {  }
</pre>
<p>
   Believe it or not, that's a perfectly valid config file all by
   itself.  It doesn't define any properties, but that's okay, because
   Pi