Add Certificate lifetime configuration in FAQ. (#1079)
Add Certificate lifetime configuration in FAQ. (#1079)


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