This issue is to update the docs about using the blue/green traffic routing pattern.
Existing docs are here: https://knative.dev/development/serving/samples/blue-green-deployment/

Tasks required:

• Move these docs from the obscurity of serving/samples to their own section in the docs under serving.
• Add an alias when the doc gets moved to avoid the broken link. Check any links in

$ minishift status
Minishift:  Running
Profile:    minishift
OpenShift:  Stopped
DiskUsage:  ERR of

perhaps this is related to the error state from the OpenShift isRunning check

The problem faced currently?

While adding an ingress route, or a target in ingress route.
If by mistake white space gets added to the route or host. We get the error specified route not found or unable to reach the specified target

How can we solve it?

Mission control should remove the white space if present before saving the config

If you want this feature to be implemented, gi

1、当没有API文档时的空数据提示
2、当没有搜索到API文档时的空数据提示