title: Using JSON.NET to write Json file in UWP
body: <p>I'm pretty new to file handling in UWP, and it feels really intricate. I don't know how to start. I thought about "learn by doing": I failed miserably.</p>
  
  <p><strong>The goal:</strong>
  I would like store an object into a Json file, into a well known location. My object is of type "<code>MySettings</code>" and I would like to save it, for instance, to <code>"ms-appx:///myconfig.json"</code>.</p>
  
  <p>How can I do it?</p>
  
  <p><strong>Another question:</strong> will this file be editable from outside my application easily, like in classic Desktop applications? I thought about editing the settings with a text editor, for changing settings quickly without rebuilding my app.</p>