Added notes on vaultwarden

vaultwarden/docker-compose.yaml

@@ -0,0 +1,13 @@
+version: "2"
+services:
+    vaultwarden:
+        image: vaultwarden/server:latest
+        container_name: vaultwarden
+        restart: unless-stopped
+        environment:
+            - SIGNUPS_ALLOWED=false
+            - ADMIN_TOKEN=this-one-should-be-huge!!!
+        volumes:
+            - ./vw-data:/data/
+        ports:
+            - 6969:80