example: add float_{move,resize}_step

Author: aesophor

example/config

@@ -20,6 +20,8 @@ set gap_width = 10
 set border_width = 3
 set min_window_width = 100
 set min_window_height = 100
+set float_move_step = 10
+set float_resize_step = 10
 set focused_color = ff596e84
 set unfocused_color = ff394859
 set focus_follows_mouse = true