README.md: fix example

[hongchaodeng]

Signed-off-by: Hongchao Deng hongchaodeng1@gmail.com

Otherwise it will error:

cannot save image with empty image.ref.name

Ref: https://github.com/projectatomic/skopeo/issues/446

[Mashimiao]

You need to add a Signed-off-by: line to your commit

[hongchaodeng]

@Mashimiao Already added but still not passed.

[Mashimiao]

That's because your commit's author is not the same as signed-off-by

[hongchaodeng]

Fixed. Thanks for your advice.

[jonboulle]

lgtm

[zhouhao3]

The same question in man folder(oci-image-tool-*.md), can you fix it together?

[coolljt0725]

@hongchaodeng as @q384566678 mentioned, can you also fix https://github.com/opencontainers/image-tools/blob/master/man/oci-image-tool-create.1.md#examples https://github.com/opencontainers/image-tools/blob/master/man/oci-image-tool-unpack.1.md#examples https://github.com/opencontainers/image-tools/blob/master/man/oci-image-tool-validate.1.md#examples ?

[hongchaodeng]

fixed

[coolljt0725]

LGTM

[zhouhao3]

LGTM