Update README.md

Signed-off-by: Alex Cuciureanu (swappie) <12533821+acuciureanu@users.noreply.github.com>

README.md

@@ -123,7 +123,7 @@ String.prototype.$initialize.call(alert(document.domain))
 For more special cases, such as getting results where the function names have names like: `String.prototype.$<=>`, `String.prototype.$==`, `String.prototype.$eql?` and so on. You can do it like this:
 
 ```javascript
-String.prototype['$<=>'].call(alert(1))
+String.prototype['$<=>'].call(alert(document.domain))
 ```