Mismatch description for batcher configuration variable `max-blocks-per-span-batc`

The configuration variable `max-blocks-per-span-batch` has the description and example of a different configuration variable `check-recent-txs-depth`

<img width="748" height="260" alt="Image" src="https://github.com/user-attachments/assets/d0817253-aa8b-49f0-a580-9d610e0fcf50" />

Path: /chain-operators/guides/configuration/batcher