[gjs/esm/static-imports] Correct typo.

[Evan Welsh <ewlsh src gnome org>]

commit d8324a8ae7279e1b3a955fac33cb54b3a31c7bb8
Author: Evan Welsh <contact evanwelsh com>
Date:   Tue Feb 2 20:29:24 2021 -0800

    Correct typo.

 doc/ESModules.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/doc/ESModules.md b/doc/ESModules.md
index 8176d9af..e79abafc 100644
--- a/doc/ESModules.md
+++ b/doc/ESModules.md
@@ -115,7 +115,7 @@ modules.
 
 ```js
 import Gtk from 'gi://Gtk?version=4.0';
-import Gdk from 'gi://Gtk?version=4.0';
+import Gdk from 'gi://Gdk?version=4.0';
 import GLib from 'gi://GLib'; // GLib, GObject, and Gio are required by GJS so no version is necessary.
 ```