add a themes section in the doc
add a themes section in the doc

bright-sparks/phpfreechat,bright-sparks/phpfreechat,MingJen/phpfreechat,jahanzaibbahadur/phpfreechat,bright-sparks/phpfreechat,kerphi/phpfreechat,jahanzaibbahadur/phpfreechat,kerphi/phpfreechat,jahanzaibbahadur/phpfreechat,MingJen/phpfreechat,MingJen/phpfreechat