Screenshot and more docs

README.md

@@ -4,7 +4,11 @@ A modern [Scorched Earth](https://en.wikipedia.org/wiki/Scorched_Earth_(video_ga
 
 [Play it for free on itch.io](https://pastry.itch.io/ravaged-planet)
 
-## Controls
+![A screenshot of the game](docs/screenshot.png)
+
+## How to play
+
+Tanks take turns to shoot at other tanks. The last surviving tank wins the round. Player 1 (red) is controlled via the keyboard, while other players are randomly-picked AIs.
 
 | Key | Function | With Shift | With Alt |
 |-|-|-|-|
@@ -12,6 +16,23 @@ A modern [Scorched Earth](https://en.wikipedia.org/wiki/Scorched_Earth_(video_ga
 | Left/Right | Aim higher/lower | Increase/decrease by 10 | Increase/decrease slowly |
 | Tab | Switch to your next weapon | Switch to your previous weapon | |
 
+## Features
+
+- [X] Play up to six tanks at once
+- [X] Colorful retro graphics
+- [X] Special graphic effects
+- [X] Bullet physics, traces and sounds
+- [X] Randomly generated terrains
+- [X] Wide assortment of weapons
+- [ ] Wide asssortment of tools (only shields and parachutes implemented so far)
+- [ ] Many different tanks to pick from
+- [ ] Many AIs to battle against (only Moron and Chooser implemented so far)
+- [ ] Long, multiple-round battles
+- [ ] Weapons & tools market
+- [ ] Configuration
+- [ ] Local Multiplayer
+- [ ] Internet Multiplayer
+
 ## License
 
 Licensed under the MIT LICENSE.