update example --code 🥡 ..

example.js

@@ -1,32 +1,30 @@
 
-'use strict';
+'use strict'
 
-const conditional = require('./');
-const etag = require('koa-etag');
-const Koa = require('koa');
-const app = new Koa();
+const conditional = require('.')
+const etag = require('koa-etag')
+const Koa = require('koa')
+const app = new Koa()
 
 // use it upstream from etag so
 // that they are present
-
-app.use(conditional());
+app.use(conditional())
 
 // add etags
-
-app.use(etag());
+app.use(etag())
 
 // respond
-
 app.use((ctx, next) => {
   return next().then(() => {
     ctx.body = {
       name: 'tobi',
       species: 'ferret',
       age: 2
-    };
-  });
+    }
+  })
 })
 
-app.listen(3000);
-
-console.log('listening on port 3000');
+app.listen(
+  3000,
+  console.log('listening on port 3000')
+)