docs: fix typo in createRoot reference (duplicate 은)

hjkim0905 · hjkim0905 · commit af6f0a4725b5 · 2026-06-04T16:13:13.000+09:00
diff --git a/src/content/reference/react-dom/client/createRoot.md b/src/content/reference/react-dom/client/createRoot.md
@@ -156,7 +156,7 @@ root.render(<App />);
 <html>
   <head><title>My app</title></head>
   <body>
-    <!-- 이것은은 DOM 노드입니다. -->
+    <!-- 이것은 DOM 노드입니다. -->
     <div id="root"></div>
   </body>
 </html>
