Update example to explicitly enable refresh (#54)

Author: Eskibear

examples/refresh.mjs

@@ -24,6 +24,7 @@ const settings = await load(connectionString, {
     }],
     trimKeyPrefixes: ["app.settings."],
     refreshOptions: {
+        enabled: true,
         watchedSettings: [{ key: "app.settings.sentinel" }],
         refreshIntervalInMs: 10 * 1000 // Default value is 30 seconds, shorted for this sample
     }
@@ -41,4 +42,4 @@ while (true) {
 
     // Waiting before the next refresh
     await sleepInMs(5000);
-}
+}