docs: fix incorrect startTransition usage in server-functions example

Author: DeveloperViraj

src/content/reference/rsc/server-functions.md

@@ -126,14 +126,15 @@ function UpdateName() {
   const submitAction = async () => {
     startTransition(async () => {
       const {error} = await updateName(name);
-      if (error) {
-        setError(error);
-      } else {
-        setName('');
-      }
-    })
-  }
-  
+      startTransition(() => {
+        if (error) {
+          setError(error);
+        } else {
+          setName('');
+        }
+      });
+    });
+  };
   return (
     <form action={submitAction}>
       <input type="text" name="name" disabled={isPending}/>