Updated README.md

README.md

@@ -181,7 +181,7 @@ If you have a great article or tutorial, please submit it through issues.
 * [protozoa](https://github.com/Zebbeni/protozoa) - A simulation of protozoan behavior and evolution.
 * [biogo](https://github.com/alexanderscrimgeour/biogo) - A simple genetic simulator written in Go.
 * [fire](https://github.com/dim13/fire) - Experiments with Ebitengine - Doomfire.
-* [balls-ebiten](https://github.com/icza/balls-ebiten) - Bouncing balls demo: collision and rotatable gravity simulation
+* [balls-ebiten](https://github.com/icza/balls-ebiten) - Bouncing balls demo - collision and rotatable gravity simulation.
 
 
 ### Applications