fix erroneously removal of "themes" from files, fix QingWei-Li/docsify#132
fix erroneously removal of "themes" from files, fix QingWei-Li/docsify#132

nsina/docsify,QingWei-Li/docsify,QingWei-Li/docsify,nsina/docsify,QingWei-Li/docsify,nsina/docsify