Update README.md

Added description

README.md

@@ -1,2 +1,17 @@
 # F-117A-Clickable-Cockpit
-An AutoHotKey (v2) script that allows to click on the cockpit buttons with the mouse cursor.
+
+This Autohotkey (v2) script is meant to be used alongside the game [F-117A Nighthawk Stealth Fighter 2.0](https://store.steampowered.com/app/328920/F117A_Nighthawk_Stealth_Fighter_20/).<br/>
+It allows to click on the cockpit buttons with the mouse cursor.
+
+Here are the supported (clickable) buttons: <br/>
+Select Weapon, NAV/AIR/GND, HUD de-clutter, ILS, Chaff, Flare, Decoy, ECM, IRJ, MAP/TAC, MFD Zoom in, MFD Zoom out, WAY, WPN, GRD, FLIR, BAY, AUTO, GEAR, FLAPS, BRAKE, Eject, Accelerate, Normal Speed, Pause, Maximum Power, Increase Power, Decrease Power, No Power, ...
+
+It's also possible to use the mouse wheel over the left MFD to zoom in/out.<br/>
+For convenience, WASD keys mimic the directionnal arrow keys.
+
+I hope to make this script stable enough and make it work on several computers (several screen resolutions, Windows DPI settings, etc).
+
+The main problem is that [DOSBox](https://www.dosbox.com/) "captures" the mouse cursor, making the Windows one invisible in-game.<br/>
+This doesn't happen with [DOSBox-X](https://dosbox-x.com/) because it displays the Windows mouse cursor over the (client) game area by default.
+
+This script is completely unofficial and not endorsed by MicroProse Software, Inc.