notes/150: spell check and expand it a little (#2749)
notes/150: spell check and expand it a little (#2749)

Signed-off-by: Miek Gieben <00b357f94cf3a1145a32703fb42e2d80418ab806@miek.nl>
coredns/coredns,johnbelamaric/coredns,yongtang/coredns,miekg/coredns,miekg/coredns,ii/coredns,chrisohaver/coredns,johnbelamaric/coredns,ii/coredns