Add missing Linux features TODO list

defos/src/defos_linux.cpp

@@ -10,6 +10,14 @@
     3. https://github.com/yetanothergeek/xctrl/blob/master/src/xctrl.c
 */
 
+/* TODO:
+ 1. ON_MOUSE_ENTER / ON_MOUSE_LEAVE
+ 2. cursor locking
+ 3. cursor clipping
+ 4. getting arguments
+ 5. setting the window icon
+*/
+
 #include "defos_private.h"
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>