docs: Document the split function Fixes #1997
docs: Document the split function
Fixes #1997

vbatoufflet/hugo,gohugoio/hugo,tubo028/hugo,bogem/hugo,tischda/hugo,soundrussian/hugo,soundrussian/hugo,anthonyfok/hugo,Zenithar/hugo,abourget/hugo,mayah/hugo,MarkDBlackwell/hugo,melo/hugo,mdhender/hugo,gohugoio/hugo,jygastaud/hugo,MarkDBlackwell/hugo,abourget/hugo,ffrizzo/hugo,anthonyfok/hugo,mitchchn/hugo,fedelibre/hugo,melo/hugo,vbatoufflet/hugo,fedelibre/hugo,anthonyfok/hugo,mdhender/hugo,mayah/hugo,ffrizzo/hugo,tubo028/hugo,tischda/hugo,fedelibre/hugo,bogem/hugo,jygastaud/hugo,mdhender/hugo,digitalcraftsman/hugo,fedelibre/hugo,mdhender/hugo,digitalcraftsman/hugo,mitchchn/hugo,Zenithar/hugo,gohugoio/hugo