Add kubeapps install for kubernetes

KUBEAPPS.md

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+# Install Kubeapps from Bitnami
+- Install
+```shell
+helm repo add bitnami https://charts.bitnami.com/bitnami
+kubectl create namespace kubeapps
+helm install kubeapps --namespace kubeapps bitnami/kubeapps
+```
+
+- Service Account
+```shell
+kubectl create --namespace default serviceaccount kubeapps-operator
+kubectl create clusterrolebinding kubeapps-operator --clusterrole=cluster-admin --serviceaccount=default:kubeapps-operator
+```
+
+- Get Token (Linux/macOS)
+```shell
+kubectl get --namespace default secret $(kubectl get --namespace default serviceaccount kubeapps-operator -o jsonpath='{range .secrets[*]}{.name}{"\n"}{end}' | grep kubeapps-operator-token) -o jsonpath='{.data.token}' -o go-template='{{.data.token | base64decode}}' && echo
+```
+
+- Get Token (Windows)
+```shell
+@ECHO OFF
+REM Get the Service Account
+kubectl get --namespace default serviceaccount kubeapps-operator -o jsonpath={.secrets[].name} > s.txt
+SET /p ks=<s.txt
+DEL s.txt
+
+REM Get the Base64 encoded token
+kubectl get --namespace default secret %ks% -o jsonpath={.data.token} > b64.txt
+
+REM Decode The Token
+DEL token.txt
+certutil -decode b64.txt token.txt
+```