fixup! esm: improve ERR_REQUIRE_ASYNC_MODULE

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: joyeecheung

doc/api/errors.md

@@ -2772,7 +2772,7 @@ changes:
     description: Added the `requireStack` and `topLevelAwaitLocations` properties.
 -->
 
-When trying to `require()` a [ES Module][], the module turns out to be asynchronous.
+When trying to `require()` an [ES Module][], the module turns out to be asynchronous.
 That is, it contains top-level await.
 
 When uncaught, the flag `--experimental-print-required-tla` prints