Update README.md

Author: flemming-n-larsen

README.md

@@ -1,5 +1,7 @@
 # Robocode
 
+![Robocode logo](https://robocode.sourceforge.io/gfx/robocode_logo_tanks.png)
+
 **_Build the best — destroy the rest!_**
 
 Robocode is a programming game, where the goal is to develop a robot battle tank to battle against other tanks in Java.
@@ -31,4 +33,4 @@ Happy Robocoding! 🤖⌨️
 
 [Robocode Application Developers]: http://groups.google.com/group/robocode-developers.
 
-[Robocode Guide for building Robocode]: https://robowiki.net/wiki/Robocode/Developers_Guide_for_building_Robocode
+[Robocode Guide for building Robocode]: https://robowiki.net/wiki/Robocode/Developers_Guide_for_building_Robocode