Fixed errors in MD text (#26631)

guide/spanish/swift/hello-world/index.md

@@ -4,24 +4,22 @@ localeTitle: Hola mundo swift
 ---
 ## Hola Mundo
 
-Sólo tenemos que agregar el método `print("Hello World")` (de la biblioteca UIKit) a la función `viewDidLoad()` de la clase `ViewController`:
+Solo tenemos que agregar el método `print("Hola Mundo")` (de la biblioteca UIKit) a la función `viewDidLoad()` de la clase `ViewController`:
+
+```Swift 
 
-```Swift
 import UIKit
 
 class ViewController: UIViewController {
-
+    override func viewDidLoad() { 
-override func viewDidLoad() { 
+        super.viewDidLoad() 
-    super.viewDidLoad() 
+        // Do any additional setup after loading the view, typically from a nib.
-    // Do any additional setup after loading the view, typically from a nib. 
+        print("Hola Mundo")
- 
+    } 
-    print("Hola Mundo") 
- 
- } 
-
 } 
 ```
 
-## Salida:
+## Salida: 
-
+```
-`> Hola Mundo`
+> Hola Mundo 
+```