Add “CIDR” to glossary

[sftim]

This is a Feature Request

What would you like to be added
Add an entry for CIDR to the glossary.

Why is this needed
Readers may encounter the term CIDR and wonder what it means. Having CIDR in the glossary allows authors to use glossary short codes where appropriate.

Comments
In Kubernetes, “CIDR” is used to means blocks of IP addresses whether the address family is IPv4 or IPv6. This is different from the strict meaning of CIDR, which is only relevant to IPv4.

[sftim]

/help
/priority backlog
/kind feature

[k8s-ci-robot]

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In response to this:

/help
/priority backlog
/kind feature

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[mhamdisemah]

/assign