fix: Link to simple melody app

Author: ff6347

src/content/tutorials/en/data-structure-garden.mdx

@@ -990,7 +990,7 @@ Throughout this journey, you learned about the fundamental concepts of JavaScrip
 
 - Use HTML & CSS with p5.js in the [Creating and Styling HTML](/tutorials/creating-styling-html) tutorial.
 - Use [ml5.js](https://ml5js.org/) with p5.js in the [Abracadabra: Speak With Your Hands](/tutorials/speak-with-your-hands) tutorial.
-- Use [node.js](https://www.w3schools.com/nodejs/nodejs_intro.asp) with p5.js in the [Getting Started with Node.js](/tutorials/getting-started-with-nodejs) and [Melody App](/tutorials/melody-app) tutorials.
+- Use [node.js](https://www.w3schools.com/nodejs/nodejs_intro.asp) with p5.js in the [Getting Started with Node.js](/tutorials/getting-started-with-nodejs) and [Simple Melody App](/tutorials/simple-melody-app/) tutorials.
 
 Once again, well done on completing this tutorial. Keep experimenting, keep coding, and most importantly, enjoy learning and creating!