Fix "a the hashs" -> "the hash" typo
Fix "a the hashs" -> "the hash" typo

Signed-off-by: Zhang Wei <14976e959b2860fb06a3c1edbdb1945a4e11b8b5@huawei.com>

mattspencer-arm/image-spec,vbatts/oci-image-spec,jonboulle/image-spec,jonboulle/image-spec,opencontainers/image-spec,mattspencer-arm/image-spec,opencontainers/image-spec,vbatts/oci-image-spec