Clarify the weakness field of enemies TextAsset data

Author: aldelaro5

docs/TextAsset Data/Enemies data.md

@@ -37,7 +37,7 @@ The asset contains one line per [enemy](../Enums%20and%20IDs/Enemies.md) whose i
 |20|battleentity.height|float|The `height` of the entity, If the [position](../Battle%20system/Actors%20states/BattlePosition.md) is `Flying` and the value is below 2.0, it is overriden to 2.0|
 |21|battleentity.bobspeed|float|The `bobspeed` of the entity|
 |22|battleentity.bobrange|float|The `bobrange` of the entity|
-|23|[weakness](../Battle%20system/Actors%20states/Enemy%20features.md#weakness)|`{` separated list of AttackProperty (int or string)|The list of [AttackProperty](../Battle%20system/Damage%20pipeline/AttackProperty.md) that applies to this enemy|
+|23|[weakness](../Battle%20system/Actors%20states/Enemy%20features.md#weakness)|`{` separated list where the first element is the length (in int) and the rest represents a list of AttackProperty (int or string)|The list of [AttackProperty](../Battle%20system/Damage%20pipeline/AttackProperty.md) that applies to this enemy. NOTE: The length portion of the field is redundant, but its value is required and it needs to be above 0 if the list isn't empty as otherwise, the list will be ignored when reading. Additionally, every element whose value is an empty string are skipped.|
 |24|[weight](../Battle%20system/Actors%20states/Enemy%20features.md#weight)|float|A visual modifier that controls if and how much the enemy can get launched if attacked, should be between 0.0 (furthest launch) and 100.0 (no launch)|
 |25|Base [Enemy](../Enums%20and%20IDs/Enemies.md) id (loaded as animid)|int|The [Enemy](../Enums%20and%20IDs/Enemies.md) id that this is a variant of (see the section below about enemy variant for details), can be omitted if it's a negative number|
 |26|[eventondeath](../Battle%20system/Actors%20states/Enemy%20features.md#eventondeath)|int|The [EventDialogue](../Battle%20system/Battle%20flow/EventDialogue.md) to trigger when the enemy dies as detected by [CheckDead](../Battle%20system/Battle%20flow/Action%20coroutines/CheckDead.md), can be ommited if it's -1|