Fix broken link to albumentations
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7593). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update. @lhoestq ping
A few months back I rewrote all docs at [https://albumentations.ai/docs](https://albumentations.ai/docs), and some pages changed their links.

In this PR fixed link to the most recent doc in Albumentations about bounding boxes and it's format. 

Fix a few typos in the doc as well.