Fix typo in JS example

Author: beaufortfrancois

index.html

@@ -1105,7 +1105,7 @@ <h4>
       await ndef.scan();
       try {
         // Let's wait for 5 seconds only.
-        write("Hello World", { timeout: 5_000 });}
+        write("Hello World", { timeout: 5_000 });
       } catch(err) {
         console.error("Something went wrong", err);
       } finally {