code: function(filename, gnaFolder, content, callback){
          if ( fs.existsSync(filename) ) {
              fs.unlinkSync(filename)
          }
          fs.appendFile(
              filename,
              JSON.stringify(content, null, '\t'),
              null,
              function(err){
                  if (err) {
                      //logger.error('gina', 'UTILS:CONFIG:ERR:2', err, __stack);
                      console.error('`Error on while calling createContent()`: ' + err.stack||err.message);
                      callback(err)
                  } else {
                      setTimeout(function(){
                          callback(err)
                      }, 1000)
                  }
              }//EO function
          )//EO fs.appendFile
      }
docs: Create content
  
  @param {string} filename - Fullpath
  @content {string} content
  
  @private