Adds reference to SLUGIFY_SOURCE
Adds reference to SLUGIFY_SOURCE

When working on my site, I wanted SLUGIFY_SOURCE, but I came across PATH_METADATA first and enabled that for a while. Better to include the cross-reference where people can find it.
avaris/pelican,florianjacob/pelican,iKevinY/pelican,sunzhongwei/pelican,treyhunner/pelican,Rogdham/pelican,51itclub/pelican,kennethlyn/pelican,deanishe/pelican,simonjj/pelican,getpelican/pelican,avaris/pelican,ehashman/pelican,deved69/pelican-1,janaurka/git-debug-presentiation,farseerfc/pelican,kernc/pelican,sunzhongwei/pelican,abrahamvarricatt/pelican,eevee/pelican,kernc/pelican,lucasplus/pelican,douglaskastle/pelican,GiovanniMoretti/pelican,simonjj/pelican,eevee/pelican,garbas/pelican,garbas/pelican,number5/pelican,sunzhongwei/pelican,ingwinlu/pelican,kernc/pelican,karlcow/pelican,douglaskastle/pelican,zackw/pelican,jo-tham/pelican,goerz/pelican,karlcow/pelican,Summonee/pelican,btnpushnmunky/pelican,levanhien8/pelican,JeremyMorgan/pelican,catdog2/pelican,kennethlyn/pelican,jvehent/pelican,51itclub/pelican,ingwinlu/pelican,sunzhongwei/pelican,rbarraud/pelican,Polyconseil/pelican,simonjj/pelican,UdeskDeveloper/pelican,talha131/pelican,deved69/pelican-1,rbarraud/pelican,iurisilvio/pelican,HyperGroups/pelican,deanishe/pelican,Summonee/pelican,JeremyMorgan/pelican,alexras/pelican,kennethlyn/pelican,crmackay/pelican,zackw/pelican,Polyconseil/pelican,crmackay/pelican,zackw/pelican,lazycoder-ru/pelican,ehashman/pelican,11craft/pelican,iurisilvio/pelican,janaurka/git-debug-presentiation,goerz/pelican,douglaskastle/pelican,alexras/pelican,arty-name/pelican,HyperGroups/pelican,getpelican/pelican,Summonee/pelican,crmackay/pelican,lazycoder-ru/pelican,jvehent/pelican,talha131/pelican,farseerfc/pelican,lazycoder-ru/pelican,Rogdham/pelican,UdeskDeveloper/pelican,gymglish/pelican,number5/pelican,janaurka/git-debug-presentiation,jvehent/pelican,number5/pelican,TC01/pelican,ls2uper/pelican,joetboole/pelican,lucasplus/pelican,eevee/pelican,joetboole/pelican,jimperio/pelican,jimperio/pelican,JeremyMorgan/pelican,11craft/pelican,ehashman/pelican,catdog2/pelican,karlcow/pelican,iurisilvio/pelican,treyhunner/pelican,goerz/pelican,catdog2/pelican,koobs/pelican,ls2uper/pelican,Scheirle/pelican,TC01/pelican,florianjacob/pelican,abrahamvarricatt/pelican,lucasplus/pelican,btnpushnmunky/pelican,koobs/pelican,levanhien8/pelican,deved69/pelican-1,jo-tham/pelican,11craft/pelican,joetboole/pelican,gymglish/pelican,HyperGroups/pelican,ls2uper/pelican,garbas/pelican,koobs/pelican,TC01/pelican,rbarraud/pelican,Rogdham/pelican,levanhien8/pelican,florianjacob/pelican,Scheirle/pelican,jimperio/pelican,treyhunner/pelican,deanishe/pelican,Scheirle/pelican,GiovanniMoretti/pelican,gymglish/pelican,btnpushnmunky/pelican,UdeskDeveloper/pelican,51itclub/pelican,GiovanniMoretti/pelican,abrahamvarricatt/pelican,alexras/pelican,iKevinY/pelican