Broken 'background' link on Fetching Pool Data page

[Hugoo]

Here:

https://docs.uniswap.org/sdk/v3/guides/advanced/pool-data

this link:

https://github.com/Uniswap/docs/blob/main/docs/sdk/v3/guides/advanced/02-pool-data.md?plain=1#L11

is broken.

It should link to parent folder:

https://github.com/Uniswap/docs/blob/main/docs/sdk/v3/guides/01-background.md