docs: Add doc for time template func
docs: Add doc for time template func

anthonyfok/hugo,gohugoio/hugo,ffrizzo/hugo,fedelibre/hugo,mitchchn/hugo,tubo028/hugo,digitalcraftsman/hugo,jygastaud/hugo,fedelibre/hugo,anthonyfok/hugo,MarkDBlackwell/hugo,bogem/hugo,anthonyfok/hugo,gohugoio/hugo,mayah/hugo,jygastaud/hugo,Zenithar/hugo,fedelibre/hugo,tubo028/hugo,mitchchn/hugo,bogem/hugo,mdhender/hugo,fedelibre/hugo,mdhender/hugo,mdhender/hugo,gohugoio/hugo,ffrizzo/hugo,Zenithar/hugo,mdhender/hugo,mayah/hugo,digitalcraftsman/hugo,MarkDBlackwell/hugo