Version 0.0.3 has been released officially.
How to upgrade from v0.0.2 to v0.0.3
Get the latest version from the Github page
Since you have already changed the app/config/config.json file backup that file so you can over write the new one
Extract the downloaded files to you website, replace app/config/config.json with yours what you have just saved
Navigate in terminal to website root and execute command
Start the application