- Mark as relevant to networking.
- Unmark as a core object. kube-proxy is not an API object.
- Fix hyperlink to reference docs.
- Include hyperlink in definition. This is used in /docs/concepts/overview/components/
- Revise wording.
This patch promotes re-use of the existing kube-proxy glossary
definition by referencing it from overview/components.md. Similarly, we
move the definition of Container Runtime into a new glossary definition
so that other pages may refer to it.