Document a CERT_DIR fix for local provider
@@ -25,3 +25,7 @@ $ cluster/kubectl.sh get nodes
NAME STATUS ROLES AGE VERSION
kubdev Ready <none> 5m20s v1.12.0-beta.2
```
+
+Note: you may need to cherry-pick
+[acdb1b0e9855ab671f2972f10605d20cad26284b](https://github.com/kubernetes/kubernetes/commit/acdb1b0e9855ab671f2972f10605d20cad26284b)
+if it's not present in your kubernetes tree yet.
