Incorrect EffLeash example

[Fusezion]

Skript/Server Version

[00:42:39 INFO]: [Skript] Skript's aliases can be found here: https://github.com/SkriptLang/skript-aliases
[00:42:39 INFO]: [Skript] Skript's documentation can be found here: https://docs.skriptlang.org/
[00:42:39 INFO]: [Skript] Skript's tutorials can be found here: https://docs.skriptlang.org/tutorials
[00:42:39 INFO]: [Skript] Server Version: git-Paper-324 (MC: 1.20.4)
[00:42:39 INFO]: [Skript] Skript Version: 2.8.0-dev (selfbuilt-unknown)
[00:42:39 INFO]: [Skript] Installed Skript Addons:
[00:42:39 INFO]: [Skript]  - skript-gui v1.3 (https://github.com/APickledWalrus/skript-gui)
[00:42:39 INFO]: [Skript]  - skript-reflect v2.4-beta1 (https://github.com/SkriptLang/skript-reflect)
[00:42:39 INFO]: [Skript]  - SkBee v3.0.1 (https://github.com/ShaneBeee/SkBee)
[00:42:39 INFO]: [Skript] Installed dependencies: None

Bug Description

The given example for the leash effect is incorrect and will never work

Expected Behavior

A proper example showcasing how to use the effect and will work when tested

Steps to Reproduce

Look at example https://docs.skriptlang.org/effects.html?search=#EffLeash
or run example code in game.
leash the player to the target entity

Errors or Screenshots

This note on the method has been around since at least 1.12

Other

A note about what isn't included should be added alongside a new example

Agreement

• I have read the guidelines above and affirm I am following them with this report.

[AyhamAl-Ali]

I would also suggest adding that note to the description of the element (with reference to the latest method link, in case this behaviour is changed)

[Fusezion]

Can I have this marked with completed and patch-ready label #6528 was merged already but didn't re-include this as a related issue.

[AyhamAl-Ali]

Done