Update to match filename

Makefile

@@ -14,7 +14,7 @@ test:
 	./$(EXE) ./tests/test_operators.alpha
 	./$(EXE) ./tests/test_otherpunc.alpha
 	./$(EXE) ./tests/test_simpleIntTest.alpha
-	./$(EXE) ./tests/test_simpleLiteral.alpha
+	./$(EXE) ./tests/test_simpleLiterals.alpha
 
 clean:
 	rm -f *.o