docs: video-intelligence: use `video` instanceName
docs: video-intelligence: use `video` instanceName

googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,callmehiphop/gcloud-node,GoogleCloudPlatform/gcloud-node,googleapis/google-cloud-node,jgeewax/gcloud-node,googleapis/google-cloud-node,callmehiphop/gcloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,jgeewax/gcloud-node