Document Pokemon Summary Screen, 1

include/pokemon_summary_screen.h

@@ -12,7 +12,7 @@ void SummaryScreen_SetUnknownTaskId(u8 a0);
 void SummaryScreen_DestroyUnknownTask(void);
 u8 GetLastViewedMonIndex(void);
 void ShowPokemonSummaryScreen(struct Pokemon * party, u8 cursorPos, u8 lastIdx, void (*callback)(void), u8 a4);
-void sub_8138B38(u8);
+void SetPokemonSummaryScreenMode(u8);
 
 // The Pokemon Summary Screen can operate in different modes. Certain features,
 // such as move re-ordering, are available in the different modes.
@@ -22,7 +22,7 @@ enum PokemonSummaryScreenMode
     PSS_MODE_UNK1,
     PSS_MODE_SELECT_MOVE,
     PSS_MODE_FORGET_MOVE,
-    PSS_MODE_UNK4,
+    PSS_MODE_TRADE,
     PSS_MODE_BOX,
 };