added a todolist

src/main.cu

@@ -18,7 +18,7 @@ static float* d_volume = nullptr;
 // * pass camera_info to the raycasting function - updated according to glfw.
 // * on that note, code for handling input (mouse movement certainly, possibly free input / 4 pre-coded views, q/esc to quit, space for pause (would be were the 'simple' render idea would come in))
 // * very similarly - actual code for loading new data as the simulation progresses - right now its effectively a static image loader
-// 
+// * better cleanup; im sure im missing a bunch of frees that really should be there.
 
 void getTemperature(std::vector<float>& temperatureData, int idx = 0) {
     std::string path = "data/trimmed";