Issue with links on factory reference page

[elasticspoon]

Description

Links within the docs for the factory reference: https://github.com/thoughtbot/factory_bot/blob/main/docs/src/ref/factory.md are broken.

Reproduction Steps

• Open https://github.com/thoughtbot/factory_bot/blob/main/docs/src/ref/factory.md
• Click add_attribute

Expected behavior

It should take you to https://github.com/thoughtbot/factory_bot/blob/main/docs/src/ref/add_attribute.md

Actual behavior

Instead it takes you to https://github.com/thoughtbot/factory_bot/blob/main/docs/src/ref/ref/add_attribute.md, which is a broken link.

I believe the markdown links are incorrect.

## Block

You can use the block to define your factory. Within here you have access to the following methods:

- [`add_attribute`](ref/add_attribute.md)
- [`association`](ref/association.md)
- [`sequence`](ref/sequence.md)
- [`trait`](ref/trait.md)

should be

## Block

You can use the block to define your factory. Within here you have access to the following methods:

- [`add_attribute`](add_attribute.md)
- [`association`](association.md)
etc...