Add a different nbody simulation (#81)

Add a different nbody simulation

README.md

@@ -123,13 +123,14 @@ These translations are unofficial, unverified, and potentially out of date.
 * [Keep Moving and Nobody Burns](https://github.com/mockersf/kmanb): A bomberman against time (made for Ludum Dare 47)
 * [SiO2](https://github.com/dmitriy-shmilo/sio2): A simple powder toy clone
 * [Robbo](https://github.com/mrk-its/bevy-robbo): Bevy port of great 8-bit Atari game, working native and in the browser
-* [DJMcNab/life-rs](https://github.com/DJMcNab/life-rs): Bevy reproduction of the rules of [Conway's Game of Life](https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life) on a randomised board.  
+* [DJMcNab/life-rs](https://github.com/DJMcNab/life-rs): Bevy reproduction of the rules of [Conway's Game of Life](https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life) on a randomised board.
+  * Alternative implementation: [Byteron/life-rs](https://github.com/Byteron/life-rs). 
 * [Zenith](https://github.com/rsaihe/zenith): A space-themed shoot 'em up game
-  Alternative implementation: [Byteron/life-rs](https://github.com/Byteron/life-rs).
 * [arugio](https://github.com/ostwilkens/arugio): Prototype multiplayer server-authoritative networked "game" with Browser (WebGL) client and native server
 * [colonize](https://github.com/indiv0/colonize): A Dwarf Fortress/Rimworld-like game written in Rust.
 * [oicana](https://github.com/NiklasEi/oicana): A tower defense game with puzzle aspects
 * [taipo](https://github.com/rparrett/taipo): A 2d typing/tower defense game for the browser.
+* [bevy-nbody](https://github.com/WhoisDavid/bevy-nbody) - 3d n-body simulation of the planets of the Solar System.
 
 ## Apps
 * [bevy-calc](https://github.com/PravinKumar95/simple-calc): A simple calculator