Fix Burma's ISO 3166-2 Code in flag-menu.html

Author: tonietto

server/partials/examples/single/flag-menu.html

@@ -33,7 +33,7 @@
         <div class="item" data-value="bn"><i class="bn flag"></i>Brunei</div>
         <div class="item" data-value="bg"><i class="bg flag"></i>Bulgaria</div>
         <div class="item" data-value="bf"><i class="bf flag"></i>Burkina Faso</div>
-        <div class="item" data-value="ar"><i class="ar flag"></i>Burma</div>
+        <div class="item" data-value="mm"><i class="mm flag"></i>Burma</div>
         <div class="item" data-value="bi"><i class="bi flag"></i>Burundi</div>
         <div class="item" data-value="tc"><i class="tc flag"></i>Caicos Islands</div>
         <div class="item" data-value="kh"><i class="kh flag"></i>Cambodia</div>
@@ -241,4 +241,4 @@
         <div class="item" data-value="ye"><i class="ye flag"></i>Yemen</div>
         <div class="item" data-value="zm"><i class="zm flag"></i>Zambia</div>
         <div class="item" data-value="zw"><i class="zw flag"></i>Zimbabwe</div>
-      </div>
+      </div>