Problem

The documentation files docs/zh_CN/chunk.md and docs/en/chunk.md for the chunk mod do not mention the left_arrow character in the chars configuration table. However, the code and the default configuration in lua/hlchunk/mods/chunk/chunk_conf.lua include left_arrow as a configurable chunk character.

As a result, users who read the documentation may not realize that left_arrow is available as an option, which could cause confusion or missed customization opportunities.

How to reproduce

• Open docs/zh_CN/chunk.md and docs/en/chunk.md.
• Check the configuration examples and descriptions for the chars table. Notice that left_arrow is not listed.
• Compare with the code in chunk_conf.lua where left_arrow is present.

Expected behavior

The documentation should list all available keys for the chars table, including left_arrow, so users know they can customize it.

Suggested solution

Update both docs/zh_CN/chunk.md and docs/en/chunk.md to mention the left_arrow key in the chars table for the chunk mod, both in configuration examples and the descriptive list. Also clarify what the character does in the chunk visual representation.

Thank you for your awesome work on this plugin!