Added a few commas (#711)
Added a few commas (#711)

To help the reader follow and digest design goals.
linsun/istio.github.io,linsun/istio.github.io,geeknoid/istio.github.io,geeknoid/istio.github.io,istio/istio.io,linsun/istio.github.io,jasminejaksic/istio.github.io,jasminejaksic/istio.github.io,ZackButcher/istio.github.io,jasminejaksic/istio.github.io,istio/istio.io,linsun/istio.github.io,jasminejaksic/istio.github.io,istio/istio.io,istio/istio.io,ZackButcher/istio.github.io,geeknoid/istio.github.io,istio/istio.io,istio/istio.io,ZackButcher/istio.github.io,linsun/istio.github.io,istio/istio.io,geeknoid/istio.github.io,ZackButcher/istio.github.io,geeknoid/istio.github.io