added some comments
added some comments

xlgames-inc/XLE,yorung/XLE,yorung/XLE,xlgames-inc/XLE,yorung/XLE,xlgames-inc/XLE,yorung/XLE,xlgames-inc/XLE,yorung/XLE,yorung/XLE,xlgames-inc/XLE,xlgames-inc/XLE,yorung/XLE,xlgames-inc/XLE,yorung/XLE,xlgames-inc/XLE