Update Jekyll excludes to ignore more files.
Update Jekyll excludes to ignore more files.

GerHobbelt/bootstrap,seanwu99/bootstrap,gijsbotje/bootstrap,Lyricalz/bootstrap,Lyricalz/bootstrap,vsn4ik/bootstrap,seanwu99/bootstrap,Hemphill/bootstrap-docs,kvlsrg/bootstrap,nice-fungal/bootstrap,janseliger/bootstrap,Hemphill/bootstrap-docs,bardiharborow/bootstrap,peterblazejewicz/bootstrap,twbs/bootstrap,nice-fungal/bootstrap,coliff/bootstrap,creativewebjp/bootstrap,SweetProcess/bootstrap,stanwmusic/bootstrap,janseliger/bootstrap,bootstrapbrasil/bootstrap,seanwu99/bootstrap,fschumann1211/bootstrap,bardiharborow/bootstrap,bootstrapbrasil/bootstrap,gijsbotje/bootstrap,9-chirno/chirno,m5o/bootstrap,GerHobbelt/bootstrap,inway/bootstrap,fschumann1211/bootstrap,fschumann1211/bootstrap,9-chirno/chirno,bardiharborow/bootstrap,tjkohli/bootstrap,Lyricalz/bootstrap,janseliger/bootstrap,seanwu99/bootstrap,joblocal/bootstrap,nice-fungal/bootstrap,creativewebjp/bootstrap,stanwmusic/bootstrap,gijsbotje/bootstrap,9-chirno/chirno,m5o/bootstrap,joblocal/bootstrap,Hemphill/bootstrap-docs,bootstrapbrasil/bootstrap,twbs/bootstrap,joblocal/bootstrap,vsn4ik/bootstrap,Hemphill/bootstrap-docs,tagliala/bootstrap,inway/bootstrap,SweetProcess/bootstrap,vsn4ik/bootstrap,tagliala/bootstrap,SweetProcess/bootstrap,tagliala/bootstrap,stanwmusic/bootstrap,creativewebjp/bootstrap,stanwmusic/bootstrap,supergibbs/bootstrap,vsn4ik/bootstrap,supergibbs/bootstrap,kvlsrg/bootstrap,coliff/bootstrap,SweetProcess/bootstrap,yuyokk/bootstrap,fschumann1211/bootstrap,gijsbotje/bootstrap,creativewebjp/bootstrap,supergibbs/bootstrap,janseliger/bootstrap,yuyokk/bootstrap,peterblazejewicz/bootstrap,supergibbs/bootstrap,zalog/bootstrap,peterblazejewicz/bootstrap,kvlsrg/bootstrap,zalog/bootstrap,GerHobbelt/bootstrap,yuyokk/bootstrap,yuyokk/bootstrap,joblocal/bootstrap,inway/bootstrap,9-chirno/chirno,bardiharborow/bootstrap,Lyricalz/bootstrap,tjkohli/bootstrap,zalog/bootstrap