Fix typo

Author: vishnu-kyatannawar

src/loaders/publicLoader.ts

@@ -7,7 +7,7 @@ export const publicLoader: MicroframeworkLoader = (settings: MicroframeworkSetti
     if (settings) {
         const expressApp = settings.getData('express_app');
         expressApp
-            // Serve static filles like images from the public folder
+            // Serve static files like images from the public folder
             .use(express.static(path.join(__dirname, '..', 'public'), { maxAge: 31557600000 }))
 
             // A favicon is a visual cue that client software, like browsers, use to identify a site