Updated changelog for no_markup issue.
Updated changelog for no_markup issue.

MWDelaney/bootstrap-3-shortcodes,jockchou/php-markdown,MWDelaney/bootstrap-3-shortcodes,Kapeli/php-markdown,robbieaverill/php-markdown,MWDelaney/bootstrap-3-shortcodes,ashur/php-markdown,n054/php-markdown,nazar-pc/php-markdown-next,mariokonrad/php-markdown,filipstefansson/bootstrap-3-shortcodes,itafroma/php-markdown,queirozfcom/php-markdown-with-syntax-highlight,filipstefansson/bootstrap-3-shortcodes