Opening JSON file from within a browser

[GuyBaele]

Add sufficient information, for different platforms this time, on how to start Google Chrome with a command-line option so that JSON files can be loaded from within Google Chrome.

[fbielejec]

This is a duplicate of issue #18

Per the above - possible solution is to open a small server on some port of the localhost and serve file statically from there, BUT:

• if user doesn't close the software properly the port is not release,
  so second time around it fails [solution: randomly choose an open
  port?]
• if he/she want's to revisit the generated webpage and goes to index.html
  directly the data is not served, so it fails