Docs for scanning known vulnerabilities in container images

[nehaLohia27]

Creating this issue to document the periodic scanning process for container images . Please refer to this PR for the work done. kubernetes/test-infra#23419

Umbrella issue : #3

There is a similar doc created for build time dependencies also . Reference PR: #16

[mccormickt]

I'd be happy to take this on!

[PushkarJ]

/assign @jan0ski

yay, thank you Tommy for taking this on :-)

[savitharaghunathan]

/sig security docs

[savitharaghunathan]

@PushkarJ do we have a label for tooling?

[PushkarJ]

@savitharaghunathan: Nope I have just added sig security label for all the tooling work so far.

[PushkarJ]

#26 is now merged that addresses this issue.

/close

[k8s-ci-robot]

@PushkarJ: Closing this issue.

In response to this:

#26 is now merged that addresses this issue.

/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.