Add a clustering section to the README
Add a clustering section to the README

wsnipex/mirrorbits,kib/mirrorbits,kib/mirrorbits,kib/mirrorbits,kArTeL/mirrorbits,wsnipex/mirrorbits,kArTeL/mirrorbits,etix/mirrorbits,Myself5/mirrorbits,wsnipex/mirrorbits,etix/mirrorbits,etix/mirrorbits,Myself5/mirrorbits,kArTeL/mirrorbits,Myself5/mirrorbits