Fix: Certificates folder for x509 error
Fix: Certificates folder for x509 error

For x509: certificate signed by unknown authority problem in minikube since version v1.20.0 I just found `~/.minikube/certs` dir.
I pasted my PEM files over there and it solve my problem.
warmchang/minikube,kubernetes/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,warmchang/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube,kubernetes/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,warmchang/minikube