Updated Run JavaScript before change detection (markdown)

Run-JavaScript-before-change-detection.md

@@ -1,5 +1,9 @@
 You can run JavaScript _before_ performing change detection, this is handy for filling in fields, clicking buttons and other actions
 
+Under Watch settings` > `Request` > `Execute JavaScript before change detection`
+
+Available in 0.39.17
+
 This is best used with the Chrome Playwright driver.
 
 ## Examples:
@@ -11,4 +15,5 @@ At http://www.quotationspage.com/random.php ( or add this shared watch https://c
 ```
 document.querySelector("input[name=homesearch]").value="cause and effect";
 document.querySelector("input[name=startsearch]").click();
-```
+```
+