README.md Section Exmaple Playbook -Cluster pymongo

[xtruthx]

Hi,
as i recognized last week after using the offical suggestions for MongoDB cluster roles for the first time, the suggestion for at least Ubuntu 20.4 LTS with the "python3-pymongo" package leads into compatibility issues.
The actuall roles requires "python3-pymongo 3.11", the latest stable version in Ubuntu 20.4 LTS Focal is still 3.10 for now.
Would it be better to mention that in the README or not? I suggest a example with a "when" statement to switch to pip installation of the latest pymongo 3.11 version if OS is Ubuntu 20.4 LTS. I already tried it and it works.