Fix tag closing

index.html

@@ -42,7 +42,7 @@
                 </form>
                 </div>
                 <div id="result_id">
-                <h3 style="display: none;" id="try_this"><br/>Try one of the following codes:</h2>
+                <h3 style="display: none;" id="try_this"><br/>Try one of the following codes:</h3>
                 <div id="answer"></div>
 				<span class="label notice" style="display: none;" id="dell_note">* for some Dell codes press Ctrl-Enter, not Enter, when entring code into the BIOS</span><br/><br/>
                 </div>