Update minikube commands for Helm 3

doc/administration/troubleshooting/kubernetes_cheat_sheet.md

@@ -230,18 +230,20 @@ to those documents for details.
   ```shell
   minikube start --cpus 3 --memory 8192 # minimum amount for GitLab to work
   minikube addons enable ingress
-  minikube addons enable kube-dns
   ```
 
 - Install Helm via Homebrew and initialize it:
 
   ```shell
-  brew install kubernetes-helm
-  helm init --service-account tiller
+  brew install helm
   ```
 
 - Copy the [Minikube minimum values YAML file](https://gitlab.com/gitlab-org/charts/gitlab/raw/master/examples/values-minikube-minimum.yaml)
-  to your workstation.
+  to your workstation:
+
+  ```shell
+  curl --output values.yaml "https://gitlab.com/gitlab-org/charts/gitlab/raw/master/examples/values-minikube-minimum.yaml"
+  ```
 
 - Find the IP address in the output of `minikube ip` and update the YAML file with
   this IP address.
@@ -250,7 +252,7 @@ to those documents for details.
 
   ```shell
   helm repo add gitlab https://charts.gitlab.io
-  helm install --name gitlab -f <path-to-yaml-file> gitlab/gitlab
+  helm install gitlab -f <path-to-yaml-file> gitlab/gitlab
   ```
 
   If you want to modify some GitLab settings, you can use the above-mentioned config