zh-translation: /faq/mixer/header-rules.md #1415 (#6080)
zh-translation: /faq/mixer/header-rules.md #1415 (#6080)

* zh-translation: /faq/mixer/header-rules.md #1415

* adopt gauliang's advise

istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io,istio/istio.io