Document .small and .mark classes
Document .small and .mark classes

These are available in _type.scss but not documented.  These classes are useful for styling without adding semantics.
hebbet/bootstrap,slavanga/bootstrap,seanwu99/bootstrap,Scoutski/bootstrap,tagliala/bootstrap,janseliger/bootstrap,jipexu/bootstrap,tjkohli/bootstrap,coliff/bootstrap,Hightrack/bootstrap,xt0rted/bootstrap,TheFridayInstitute/bootstrap,gijsbotje/bootstrap,SweetProcess/bootstrap,gijsbotje/bootstrap,m5o/bootstrap,n054/bootstrap,frostbitten/bootstrap,lemuelbarango/bootstrap,bardiharborow/bootstrap,afuno/bootstrap,tagliala/bootstrap,bootstrapbrasil/bootstrap,tjkohli/bootstrap,afuno/bootstrap,nice-fungal/bootstrap,9-chirno/chirno,johnajacob/bootstrap,frostbitten/bootstrap,TheFridayInstitute/bootstrap,GerHobbelt/bootstrap,Delagen/bootstrap,onenameio/rhythm-bootstrap,GerHobbelt/bootstrap,hebbet/bootstrap,andresgalante/bootstrap,stanwmusic/bootstrap,n054/bootstrap,igoynawamreh/bootstrap,copperdesign/bootstrap,andresgalante/bootstrap,TheFridayInstitute/bootstrap,tomlutzenberger/bootstrap,lipis/bootstrap,Hemphill/bootstrap-docs,yuyokk/bootstrap,igoynawamreh/bootstrap,davethegr8/bootstrap,fschumann1211/bootstrap,zalog/bootstrap,hebbet/bootstrap,IdanCo/bootstrap,edanbarak/bootstrap,supergibbs/bootstrap,twbs/bootstrap,creativewebjp/bootstrap,twbs/bootstrap,creativewebjp/bootstrap,m5o/bootstrap,joblocal/bootstrap,9-chirno/chirno,gijsbotje/bootstrap,lipis/bootstrap,igoynawamreh/bootstrap,afuno/bootstrap,wesamco/bootstrap-rtl,vitaligent/4,tomlutzenberger/bootstrap,slavanga/bootstrap,GerHobbelt/bootstrap,Lyricalz/bootstrap,seanwu99/bootstrap,lipis/bootstrap,tibo66/bootstrap,Delagen/bootstrap,JumpLinkNetwork/bootstrap-backward,seanwu99/bootstrap,stanwmusic/bootstrap,Lyricalz/bootstrap,tibo66/bootstrap,davethegr8/bootstrap,lipis/bootstrap,vitaligent/4,n054/bootstrap,fschumann1211/bootstrap,JumpLinkNetwork/bootstrap-backward,tagliala/bootstrap,IdanCo/bootstrap,SweetProcess/bootstrap,IdanCo/bootstrap,hebbet/bootstrap,peterblazejewicz/bootstrap,stanwmusic/bootstrap,david-schopf/bootstrap,fschumann1211/bootstrap,johnajacob/bootstrap,Scoutski/bootstrap,realcrowd/bootstrap,supergibbs/bootstrap,jipexu/bootstrap,fschumann1211/bootstrap,kvlsrg/bootstrap,TheFridayInstitute/bootstrap,wesamco/bootstrap-rtl,edanbarak/bootstrap,janseliger/bootstrap,Hemphill/bootstrap-docs,janseliger/bootstrap,NCARB/bootstrap,joblocal/bootstrap,sealocal/bootstrap,bardiharborow/bootstrap,JumpLinkNetwork/bootstrap-backward,Lyricalz/bootstrap,JumpLinkNetwork/bootstrap-backward,janseliger/bootstrap,lemuelbarango/bootstrap,supergibbs/bootstrap,zalog/bootstrap,coliff/bootstrap,bardiharborow/bootstrap,copperdesign/bootstrap,onenameio/rhythm-bootstrap,inway/bootstrap,tomlutzenberger/bootstrap,edanbarak/bootstrap,zalog/bootstrap,davethegr8/bootstrap,NCARB/bootstrap,Scoutski/bootstrap,sealocal/bootstrap,johnajacob/bootstrap,tibo66/bootstrap,johnajacob/bootstrap,blockstack/blockstack-bootstrap,vitaligent/4,frostbitten/bootstrap,wesamco/bootstrap-rtl,9-chirno/chirno,Hemphill/bootstrap-docs,vsn4ik/bootstrap,NCARB/bootstrap,inway/bootstrap,lemuelbarango/bootstrap,Hemphill/bootstrap-docs,frostbitten/bootstrap,vsn4ik/bootstrap,jipexu/bootstrap,xt0rted/bootstrap,afuno/bootstrap,stanwmusic/bootstrap,NCARB/bootstrap,joblocal/bootstrap,blockstack/blockstack-bootstrap,copperdesign/bootstrap,jipexu/bootstrap,SweetProcess/bootstrap,n054/bootstrap,davethegr8/bootstrap,andresgalante/bootstrap,sealocal/bootstrap,nice-fungal/bootstrap,slavanga/bootstrap,creativewebjp/bootstrap,kvlsrg/bootstrap,inway/bootstrap,peterblazejewicz/bootstrap,IdanCo/bootstrap,bootstrapbrasil/bootstrap,slavanga/bootstrap,joblocal/bootstrap,seanwu99/bootstrap,igoynawamreh/bootstrap,wesamco/bootstrap-rtl,edanbarak/bootstrap,xt0rted/bootstrap,SweetProcess/bootstrap,david-schopf/bootstrap,vsn4ik/bootstrap,Lyricalz/bootstrap,xt0rted/bootstrap,realcrowd/bootstrap,abvalentine/bootstrap,lemuelbarango/bootstrap,copperdesign/bootstrap,sealocal/bootstrap,vsn4ik/bootstrap,creativewebjp/bootstrap,kvlsrg/bootstrap,Scoutski/bootstrap,Hightrack/bootstrap,supergibbs/bootstrap,gijsbotje/bootstrap,yuyokk/bootstrap,realcrowd/bootstrap,abvalentine/bootstrap,Hightrack/bootstrap,realcrowd/bootstrap,yuyokk/bootstrap,onenameio/rhythm-bootstrap,Delagen/bootstrap,abvalentine/bootstrap,andresgalante/bootstrap,9-chirno/chirno,abvalentine/bootstrap,Delagen/bootstrap,nice-fungal/bootstrap,peterblazejewicz/bootstrap,blockstack/blockstack-bootstrap,tibo66/bootstrap,david-schopf/bootstrap,bootstrapbrasil/bootstrap,yuyokk/bootstrap,bardiharborow/bootstrap