Document serde::bytes.
Document serde::bytes.

sidred10/serde,oli-obk/rust-serde,erickt/serde,Ticki/serde,tempbottle/serde,csmulhern/serde,JohnHeitmann/serde,skade/serde,serde-rs/serde,thorbenk/serde,eefriedman/serde