Documentation outdated for 3 years

[Rotzbua]

Description

https://docs.guzzlephp.org is outdated. Last update was 3 years ago.

How to reproduce

Visit documentation or look at RTD project site. https://app.readthedocs.org/projects/guzzle/builds/?version__slug=&state=succeeded&version__type=

Possible Solution

Add missing config. Add status badge.

Additional context
Nope

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed after 2 weeks if no further activity occurs. Thank you for your contributions.

[Rotzbua]

@GrahamCampbell Since you published the last release, aren't you interested in up-to-date documentation for the current release?