git checkout 7a78f0f44cd08b5acfa9d0565b6f9c21ab3d7979^ docs/user-guide/kubernetes-integration.md
git checkout 7a78f0f44cd08b5acfa9d0565b6f9c21ab3d7979^ docs/user-guide/kubernetes-integration.md

Commit 7a78f0f44cd08b5acfa9d0565b6f9c21ab3d7979 deleted
`docs/user-guide/kubernetes-integration.md`, but it's still linked to by
`docs/user-guide/operators.md`.  So restore it for now.

datawire/ambassador,datawire/ambassador,datawire/ambassador,datawire/ambassador,datawire/ambassador