What do you see as an issue?
In the documentation the word "version" appears instead of 3.0.0:
https://airflow.apache.org/docs/apache-airflow/3.0.0/howto/docker-compose/index.html

The same thing happens for the docker-compose.yaml file linked:

Solving the problem
Make documentation equal to 2.10.5

Anything else
No response
Are you willing to submit PR?
Code of Conduct