feat(documentation): Added authentik readme content and example helm values file

Authentik/values.yml

@@ -0,0 +1,27 @@
+authentik:
+  secret_key: <secret key>
+  # This sends anonymous usage-data, stack traces on errors and
+  # performance data to sentry.io, and is fully opt-in
+  error_reporting:
+    enabled: false
+  postgresql:
+    password: <database password>
+
+server:
+  ingress:
+    # Specify kubernetes ingress controller class name
+    ingressClassName: traefik
+    enabled: true
+    hosts:
+      - <authentik hostname>
+    annotations:
+      cert-manager.io/cluster-issuer: "letsencrypt-production"
+    tls:
+      - hosts:
+          - <authentik hostname>
+        secretName: authentik-tls
+
+postgresql:
+  enabled: true
+  auth:
+    password: <database password>