add link to client class indocs
add link to client class indocs

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