Add "Physics Engine" to issue template

danistefanovic · web-flow · commit 6058154d5efc · 2018-05-16T19:34:49.000+02:00
diff --git a/ISSUE_TEMPLATE b/ISSUE_TEMPLATE
@@ -23,6 +23,7 @@ Thanks for contributing! Tutorial in this list should provide a guided path for
 * [ ] Network Stack
 * [ ] Neural Network
 * [ ] Operating System
+* [ ] Physics Engine
 * [ ] Programming Language
 * [ ] Regex Engine
 * [ ] Shell
