add Try section to recently updated README.md files

2020/endoh1/README.md

@@ -11,6 +11,8 @@ Twitter: @mametter
 
     ./prog
 
+### Try:
+
     # Try resizing the terminal window before the first click.
 
     # Try resizing the terminal window after the first click.

2020/kurdyukov1/README.md

@@ -12,6 +12,8 @@ Twitter: @ilyakurdyukov
 
     ./prog
 
+### Try:
+
     echo IOCCC | ./prog
 
     ./prog < prog.x86.asm