Update ingress.md (#554)
Update ingress.md (#554)

* Update ingress.md

* Update ingress.md

linsun/istio.github.io,geeknoid/istio.github.io,linsun/istio.github.io,jasminejaksic/istio.github.io,jasminejaksic/istio.github.io,istio/istio.io,ZackButcher/istio.github.io,smawson/istio.github.io,istio/istio.io,geeknoid/istio.github.io,linsun/istio.github.io,smawson/istio.github.io,linsun/istio.github.io,smawson/istio.github.io,geeknoid/istio.github.io,jasminejaksic/istio.github.io,jasminejaksic/istio.github.io,ZackButcher/istio.github.io,ZackButcher/istio.github.io,istio/istio.io,istio/istio.io,linsun/istio.github.io,istio/istio.io,geeknoid/istio.github.io,geeknoid/istio.github.io,istio/istio.io,smawson/istio.github.io,ZackButcher/istio.github.io,istio/istio.io