update main TODO

src/main.cpp

@@ -17,6 +17,15 @@
  * - add an 'orbits' namespace
  *   - drop orbit from interface functions,
  *   	eg) 'orbitGetTimeOfFlight()' becomes 'getTimeOfFlight()'
+ *
+ * - Gooey:
+ *   - Add maneuver controls for circularize_raising/lowering
+ *   - can we make the input slider for maneuver anomaly snap to certain angles?
+ *   	- 0, apoapse, periapse?
+ *
+ * - Important!! add std::isnan() checks, from <cmath>, after applyManeuver(),
+ *   	we're getting intermittent wonkyness, maybe another divide by zero
+ *   	somewhere
  */
 
 #include <cassert>