Correct info about the Guarded Patterns

Author: josealonso

concepts/switch-statement/about.md

@@ -145,24 +145,25 @@ Starting with Java 14 (available as a preview before in Java 12 and 13) it is po
    However if you use the new `->` notation it must be followed by either: a single statement/expression, a `throw` statement or a `{}` block.
    No more confusion!
 
+You can find more information on enhanced switch [here][switch1], [here][switch2] and on the [oracle documentation][oracle-doc].
 
 In addition, a feature called `Guarded Patterns` was added in Java 21, which allows you to do checks in the case label itself.
 
 ```java
 String dayOfMonth = getDayOfMonth();
 String day = "";
 return switch (day) {
-    case "Tuesday" && dayOfMonth == 13 -> "Forbidden day!!";
+    case "Tuesday" when dayOfMonth == 13 -> "Forbidden day!!";
     case "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" -> "Week day";
     case "Saturday", "Sunday" -> "Weekend";
     default -> "Unknown";
 };
 ```
 
-
-You can find more information on enhanced switch [here][switch1], [here][switch2] and on the [oracle documentation][oracle-doc].
+You can find more information on the switch expression on Java 21 [here][switch-on-Java-21]
 
 [yield-keyword]: https://www.codejava.net/java-core/the-java-language/yield-keyword-in-java
 [switch1]: https://www.vojtechruzicka.com/java-enhanced-switch/
 [switch2]: https://howtodoinjava.com/java14/switch-expressions/
 [oracle-doc]: https://docs.oracle.com/en/java/javase/13/language/switch-expressions.html
+[switch-on-Java-21]: https://blog.adamgamboa.dev/switch-expression-on-java-21/#3-guarded-pattern