Update why-two-kinds-of-patterns.md (#2143)

* Update why-two-kinds-of-patterns.md

* Update why-two-kinds-of-patterns.md

Author: scheglov

working/0546-patterns/why-two-kinds-of-patterns.md

@@ -380,7 +380,7 @@ case _:            print("other value")
 ```
 
 Here, the `let x` subpattern binds a new variable `x` to the second element of
-the matched tuple. This program prints "was two and 2".
+the matched tuple. This program prints "was one and 2".
 
 ## Evaluating an approach for Dart