io.servers: fix a couple of typos in docs
io.servers: fix a couple of typos in docs

mcandre/factor,mcandre/factor,erg/factor,erg/factor,mcandre/factor,mcandre/factor,mcandre/factor,erg/factor,erg/factor,mcandre/factor,mcandre/factor,erg/factor,erg/factor,erg/factor