Add the difference with the Node revisions autoclean module to the project page

Problem/Motivation

I just discover a module named Node revisions autoclean and we need to identify the differences.

Proposed resolution

Find the differences and add them to the project page.

Remaining tasks

Study the module.
Write the differences.

User interface changes

None.

API changes

None.

Data model changes

None.

Release notes snippet

None.