Update TODO.md

Change Item_Flag to be a string to support hex values

worlds/pokemon_platinum/TODO.md

@@ -5,20 +5,20 @@
 		"tag": "ITEM_LOCATION_DESC",
 		"long_description": "Location - Item by Pond",
 		"location": "LOCATION_ROUTE",
-		"item_flag": 0,
+		"item_flag": "0",
 		"vanilla_item": 1
 	}
 	```
 - Full list of all hidden items and what flag triggers them (hidden_items.json)
-```json
+       ```json
 	{
 		"tag": "HIDDEN_ITEM_LOCATION_DESC",
 		"long_description":"Location - Hidden Item near Stairs",
 		"location": "LOCATION_ROUTE",
-		"item_flag": 0,
+		"item_flag": "0",
 		"vanilla_item": 1
 	}
-```
+        ```
 - Full list of locations and where they connect to (connections.json)
 - Please treat each and every map change as a connection for now. We may optimize this later to group them into access sections instead of just marking every connection for generation speed. I prefer full accuracy first, optimize later.
 ```json
@@ -74,4 +74,4 @@
 - Support randomization of types
 ## AP World
 - Practically everything. What's here is basically a clone of the Pokemon Emerald AP world with changed names. A bunch of the logic requires the JSON files being ready to go.
-- BizHawk needs to be able to deal with the Dynamic loading of the save file and other content. This is done by doing a pointer trick to get the start of the save file. See the test.lua script, this does it to find the player name/money on every load since this changes every load if the time is not locked.
+- BizHawk needs to be able to deal with the Dynamic loading of the save file and other content. This is done by doing a pointer trick to get the start of the save file. See the test.lua script, this does it to find the player name/money on every load since this changes every load if the time is not locked.