Update shortcode doc for 0.13-DEV
Update shortcode doc for 0.13-DEV

Update of the doc to reflect the shortcode  implemention in HEAD.

digitalcraftsman/hugo,mayah/hugo,ffrizzo/hugo,halostatue/hugo,fhergomez/hugo,ryanclarke/hugo,coderzh/hugo,coderzh/hugo,soundrussian/hugo,melo/hugo,bramp/hugo,Zenithar/hugo,fedelibre/hugo,jygastaud/hugo,ifraixedes/hugo,derekperkins/hugo,derekperkins/hugo,bogem/hugo,fedelibre/hugo,soundrussian/hugo,fhergomez/hugo,halostatue/hugo,mitchchn/hugo,mayah/hugo,vbatoufflet/hugo,gohugoio/hugo,fedelibre/hugo,fedelibre/hugo,anthonyfok/hugo,gohugoio/hugo,abourget/hugo,gohugoio/hugo,tubo028/hugo,ryanclarke/hugo,mdhender/hugo,badoet/hugo,jygastaud/hugo,bogem/hugo,mdhender/hugo,tatsushid/hugo,bramp/hugo,kujohn/hugo,tjyang/hugo,tatsushid/hugo,tischda/hugo,tischda/hugo,anthonyfok/hugo,MarkDBlackwell/hugo,mitchchn/hugo,mdhender/hugo,mdhender/hugo,tjyang/hugo,vbatoufflet/hugo,tubo028/hugo,ffrizzo/hugo,abourget/hugo,kujohn/hugo,sprig/hugo,Zenithar/hugo,sprig/hugo,MarkDBlackwell/hugo,anthonyfok/hugo,melo/hugo,digitalcraftsman/hugo,badoet/hugo,ifraixedes/hugo