Update sidecar-injection.md follow up (#892)
Update sidecar-injection.md follow up (#892)

* Update sidecar-injection.md

* Update sidecar-injection.md

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