Update setup.mdx

yaml formatting issue fixed

Author: lauradowell

src/content/reference/es/p5/setup.mdx

@@ -12,22 +12,18 @@ line: 82
 isConstructor: false
 itemtype: method
 alt: nothing displayed
-example: |-
-  <div><code>
-  let a = 0;
-  function setup() {
-    background(0);
-    noStroke();
-    fill(102);
-  }
-  function draw() {
-    rect(a++ % width, 10, 2, 80);
-  }
-  </code></div>
-class: p5
-chainable: false
----
-
+example:
+  - |-
+    <div><code>
+    let a = 0;
+    function setup() {
+      background(0);
+      noStroke();
+      fill(102);
+    }
+    function draw() {
+      rect(a++ % width, 10, 2, 80);
+    }
     </code></div>
 class: p5
 chainable: false