Add `xml->pushTag()` and `xml->popTag()` todo

src/Application/SettingsLoader.cpp

@@ -3,6 +3,9 @@
 namespace ofx {
 namespace piMapper {
 
+// TODO: Figure out how to solve readability regarding
+//       xmlSettings->pushTag() and xmlSettings->popTag()
+
 SettingsLoader * SettingsLoader::_instance = 0;
 
 SettingsLoader * SettingsLoader::instance(){