Correct nested property destructuring default value example

Author: stuartlangridge

chapters/ch03.asciidoc

@@ -477,7 +477,7 @@ Default values can also be provided in nested property destructuring.
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 var { metadata: { enemy = 'Satan' } } = character;
 console.log(enemy);
-// <- true
+// <- Satan
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 For use in combination with aliases, you should place the alias first, and then the default value, as shown next.