chart fixes and readme edits

helm/snapdrop/templates/ingress.yaml

@@ -0,0 +1,25 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ .Release.Name }}
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    kubernetes.io/ingress.class: nginx
+    nginx.ingress.kubernetes.io/proxy-body-size: "0"
+    nginx.org/client-max-body-size: "0"
+spec:
+  rules:
+  - host: {{ .Values.snapdrop.domain }}
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: snapdrop
+            port:
+              name: http
+  tls:
+  - hosts:
+    - {{ .Values.snapdrop.domain }}
+    secretName: snapdrop-tls-cert