Upgrading notes

Signed-off-by: Dexrn ZacAttack <[email protected]>

LCE/Saving/Pre-Release Save Format.md

@@ -1,5 +1,10 @@
 # LCE Pre-Release Save File
 
+### Upgrading
+- These save files can be upgraded to the new format, working in atleast TU0, does not work in TU75.
+- Upgrading a world in this format will usually leave a "players_" file, they likely used _ as a seperator for subfolders, or not at all. This also means you will lose your player data upon loading a save in a newer version.
+- When upgraded, the timestamps of all the files are set to 0L.
+
 ### Save file structure
 | Name | Size (in bytes) | Description |
 |------|-----------------|-------------|
@@ -22,7 +27,6 @@
 | File Size | 0x04 (uint) | Size of file in bytes
 | File Offset | 0x04 (uint) | Offset of file in bytes
 
-
 > [!WARNING]
 > There may be index data [inside file data](https://github.com/user-attachments/assets/e44eea94-41a9-42cf-8386-f84ac9565cff)  
 > I assume that these versions might not remove index data from files as usually it'd probably get overwritten or not read at all...