removed v0.5.0 docs, updated links

README.md

@@ -1,17 +1,12 @@
 # Knative on OpenShift documentation
 
-
 Build and deploy serverless applications using an event-driven infrastructure on Red Hat® OpenShift®
 
 ## Knative v0.6.0 on OpenShift 4.1
 * [Knative Serving v0.6.0 on OpenShift 4.1](versions/v060/knative-serving-v060-OCP-41.md)
 * [Knative Eventing v0.6.0 on OpenShift 4.1](versions/v060/knative-eventing-v060-OCP-41.md)
 * [Release Notes](versions/v060/rn-knative-v060-OCP-41.md)
 
-## Knative v0.5.0 on OpenShift
-* [Knative v0.5.0 on an OpenShift 4.x cluster](versions/v050/knative-v050-OCP-4x.md)
-* [Release Notes](versions/v050/rn-knative-v050-OCP-4x.md)
-
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 ## Links
 * [Knative Tutorial](https://redhat-developer-demos.github.io/knative-tutorial)