doc: edit Error.captureStackTrace html comment

Edit to the comment in the stack trace capture, highlighting the use of
the constructorOpt argument in errors.md

Fixes: #12289
PR-URL: #12962
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

doc/api/errors.md

@@ -238,7 +238,7 @@ function MyError() {
 
 // Without passing MyError to captureStackTrace, the MyError
 // frame would show up in the .stack property. By passing
-// the constructor, we omit that frame and all frames above it.
+// the constructor, we omit that frame, and retain all frames below it.
 new MyError().stack;
 ```