update other reference

Author: jenshu

README.md

@@ -98,7 +98,7 @@ Procedure:
 
 ### Current Release Cycle
 
-[Dates and further information for the 1.28 Release](https://github.com/kubernetes/sig-release/tree/master/releases/release-1.28)
+[Dates and further information for the 1.34 Release](https://github.com/kubernetes/sig-release/tree/master/releases/release-1.34)
 
 ## Exceptions to Enhancement Milestone Dates