🔧 Updated .env template

.env

@@ -1,5 +1,9 @@
 # Store environmental variables here. All variables are optional.
 
-# PORT=4000           # The port to expose the running application on
 # NODE_ENV=production # Can be either development, production or test
-# BASE_URL=/          # The default base path for serving up static assets
+# PORT=4000           # The port to expose the running application on
+# HOST=localhost      # The host that Dashy is running on, domain or IP
+# BASE_URL=./         # The default base path for serving up static assets
+# VUE_APP_DOMAIN      # Usually the same as BASE_URL, but accessible in frontend
+# IS_DOCKER=true      # Usually already set, should be true if running in container
+# VUE_APP_VERSION     # Again, set automatically using package.json during build