Add docs how to install Knative from release (#2218)
Add docs how to install Knative from release (#2218)

* Add docs how to install Knative from release

* Apply suggestions from code review

Co-Authored-By: sjanota <09a795f0fd6a0cedfc1e7957ef3c20d410a669b0@sap.com>

* Update 038-inst-knative.md

* link fix

kyma-project/kyma,kyma-project/kyma,kyma-project/kyma,kyma-project/kyma