add console.log after app bootstrap

Author: pleerock

src/index.ts

@@ -26,4 +26,6 @@ createConnection().then(async connection => {
     // run app
     app.listen(3000);
 
-}).catch(error => console.log("TypeORM connection error: ", error));
+    console.log("Express application is up and running on port 3000");
+
+}).catch(error => console.log("TypeORM connection error: ", error));