info about the updater

Author: uuuzbf

README.md

@@ -6,6 +6,8 @@ Copy `d3d8.dll` into your game directory.
 
 If you already have a `d3d8.dll` rename it to `d3d8_next.dll`, it will keep working!
 
+### Updater
+The DLL has a builtin updater, so it can replace itself with newer versions. For now the updater cannot be disabled but this option will be added when configuration will be possible.
 
 ### Bugfixes
 - Fix crash when the game is minimized