Update deliverables.txt

brief/deliverables.txt

@@ -1,5 +1,10 @@
 # Project Deliverables
 
-* The project deliverables should be two files: `engine.py` and `engine_tests.py`.
-* `engine.py` should implement a UCI compatible interface and be usable in that context.
-* `engine_tests.py` contains various tests to validate the code in `engine.py` is working correctly.
+The project deliverables should be two files: engine.py and engine_tests.py.
+
+* engine.py should implement a UCI compatible interface. It should be able to:
+  - receive and interpret UCI commands (e.g., ucinewgame, position, go, etc.) from a GUI or another UCI-compliant program.
+  - send appropriate responses and information back via the UCI protocol (e.g., bestmove, info, etc.).
+  - handle time controls and other game parameters as communicated through UCI.
+
+* engine_tests.py contains various tests to validate the correctness of the UCI implementation in engine.py.