added range example
added range example

onrik/objx,yxd-hde/objx,dvln/objx,onrik/objx,outrightmental/go-objx,pki-io/objx,yxd-hde/objx,outrightmental/go-objx,dvln/objx,stretchr/objx,jmptrader/objx,jmptrader/objx,stretchr/objx,pki-io/objx