Add warning to README.rst

[B3QL]

Hi folks,
since nothing much had happened from the beginning of 2023
in terms of finishing version 2.0 or building a team around the project.

I see no choice but to warn other developers to not depend on MoviePy.

[coveralls]

coverage: 84.484% (-0.2%) from 84.697% when pulling 00d35f5 on B3QL:1874-add-warning into b5bb086 on Zulko:master.

[B3QL]

@keikoro can you take a look?

[keikoro]

@keikoro can you take a look?

I wouldn't agree it's "not maintained" – I'm still labelling issues here. ^^ But agree that a warning makes sense.

Maybe you could change it to something that doesn't make it sound like it's dead dead, but lets users know that what's on PyPI is outdated and that the project is struggling with releasing a new version? Otherwise people will be confused why the repo wasn't also set to archived.

[B3QL]

Hey @keikoro, you're right. The message was crafted before the rebirth of the discussion. I'll reword it next week when I will return from holidays. Sorry for late response :)

[coveralls]

coverage: 81.904%. remained the same when pulling 986351e on B3QL:1874-add-warning into bc8d1a8 on Zulko:master.

[B3QL]

@keikoro I tried to make it more informative and less scary, let me know if it's OK :)

[B3QL]

@keikoro depending on #1874 (comment) the PR might not be needed :) I would love to close it, but let's wait.

[B3QL]

Closing in favour of #2024