update document generation for istioctl (#1047)
update document generation for istioctl (#1047)


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