added a note to the reset handler

Author: itzandroidtab

entry/entry.c

@@ -18,6 +18,9 @@ int main();
  * attribute "__constructor__". When marked the function will be added to
  * the ".init_array" segment and called before main is called.
  * 
+ * @note When running this program in the debugger this will not be called.
+ * This means the constructors and other items are not called during startup
+ * 
  */
 void __attribute__((__noreturn__, __naked__)) __reset_handler() {
     // initialize the stack pointer. As we are running from ram