added mkv in list of file, and removed some of the subtitling files srt, vtt, and gif
added mkv in list of file, and removed some of the subtitling files srt, vtt, and gif

OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2,OpenNewsLabs/autoEdit_2