Updates RELEASING doc.
Updates RELEASING doc.

Grammar fixes.

More grammar fixes.

rusoto/rusoto,SecurityInsanity/rusoto,mthjones/rusoto,mthjones/rusoto,ford-prefect/rusoto,indiv0/rusoto,rusoto/rusoto,DualSpark/rust-aws,DualSpark/rusoto,mattico/rusoto,DualSpark/rust-aws,mattico/rusoto,mattico/rusoto,noggleboggle/rusoto,ford-prefect/rusoto,SecurityInsanity/rusoto,DualSpark/rusoto,DualSpark/rusoto,DualSpark/rust-aws,cmsd2/rusoto,rusoto/rusoto