sig-release isn't in SIG list

[jbeda]

@calebamiles Can you make sure that sig-release is in sigs.yaml?

This is the system of record for all metadata about SIGs. Feel free to point to a separate repo for other documents. We can also expand the schema to include a SIG meta-repo. But, regardless, the standard info should be there.

[k8s-github-robot]

@jbeda
There are no sig labels on this issue. Please add a sig label by:

1. mentioning a sig: @kubernetes/sig-<group-name>-<group-suffix>
   e.g., @kubernetes/sig-contributor-experience-<group-suffix> to notify the contributor experience sig, OR

2. specifying the label manually: /sig <label>
   e.g., /sig scalability to apply the sig/scalability label

Note: Method 1 will trigger an email to the group. You can find the group list here and label list here.
The <group-suffix> in the method 1 has to be replaced with one of these: bugs, feature-requests, pr-reviews, test-failures, proposals

[cblecker]

Fixed in #917
/sig release