fixed linting issue

Author: libanj0161

Sprint-3/alarmclock/index.html

@@ -13,9 +13,9 @@ <h1 id="timeRemaining">Time Remaining: 00:00</h1>
       <input id="alarmSet" type="number" />
 
       <div class="button-group">
-      <button id="set" type="button">Set Alarm</button>
-      <button id="stop" type="button">Stop Alarm</button>
-    </div>
+        <button id="set" type="button">Set Alarm</button>
+        <button id="stop" type="button">Stop Alarm</button>
+      </div>
     </div>
     <script src="alarmclock.js"></script>
   </body>