tools.crossref: Added $subsection to 'M: link uses' markup list
tools.crossref: Added $subsection to 'M: link uses' markup list

mcandre/factor,kingcons/factor,mcandre/factor,kingcons/factor,ceninan/factor,ceninan/factor,kingcons/factor,erg/factor,mcandre/factor,cataska/factor,erg/factor,erg/factor,littledan/Factor,erg/factor,cataska/factor,erg/factor,cataska/factor,mcandre/factor,mcandre/factor,littledan/Factor,ceninan/factor,mcandre/factor,ceninan/factor,erg/factor,littledan/Factor,erg/factor,mcandre/factor,cataska/factor,kingcons/factor,littledan/Factor