Add MicroK8s, Helm and Dokku to the documentation

docs/helm.md

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+# Helm 3
+
+Helm is a package manager for Kubernetes. It allows you to install and manage applications on Kubernetes.
+
+## Setup EasyHAProxy with Helm 3
+
+### 1) Identify the node where your EasyHAProxy container will run
+
+EasyHAProxy will be limited to a single node. To understand that see [limitations](limitations.md) page.
+
+```bash
+$ kubectl get nodes
+
+NAME      STATUS   ROLES    AGE    VERSION
+node-01   Ready    <none>   561d   v1.21.13-3
+node-02   Ready    <none>   561d   v1.21.13-3
+```
+
+Add the EasyHAProxy label to the node.
+
+```bash
+kubectl label nodes node-01 "easyhaproxy/node=master"
+```
+
+### 2) Install EasyHAProxy
+
+Minimal configuration
+
+```bash
+helm repo add byjg https://opensource.byjg.com/helm
+helm repo update byjg
+kubectl create namespace easyhaproxy
+
+helm upgrade --install ingress byjg/easyhaproxy \
+    --namespace easyhaproxy \
+    --set resources.requests.cpu=100m \
+    --set resources.requests.memory=128Mi
+```
+
+Customizing Helm Values:
+
+```yaml
+easyhaproxy:
+  stats:
+    username: admin
+    password: password
+  refresh: "10"
+  customErrors: "true"
+  sslMode: loose
+  logLevel:
+    certbot: DEBUG
+    easyhaproxy: DEBUG
+    haproxy: DEBUG
+  letsencrypt:
+    email: ""
+
+service:
+  create: false          # If false, it will create a DaemonSet with hostPort. The easiest. 
+  type: ClusterIP        # or NodePort
+  annotations: {}
+
+binding:
+  ports:
+    http: 80
+    https: 443
+    stats: 1936
+  additionalPorts: []
+
+# Make sure to create this
+masterNode:
+  label: easyhaproxy/node
+  values: 
+    - master
+```
+
+For more parameters you can refer to the [Kubernetes](kubernetes.md) page.
+
+----
+[Open source ByJG](http://opensource.byjg.com)