Feature Request: Provide hotreload

[timo-reymann]

Foremost, thank you for this wonderful plugin, I use it in quite some projects now, and it works like a charm.

I am not too deep in the internals of mkdocs so I am not sure if this is even possible.

Motivation

Currently, most use cases are either generating “virtual” markdown files e.g., from special comments from code, or based on a file structure on disk.

The most prominent example for this is a set of YAML files that are generated into proper documentation. Every time one of those YAML files changes, one has to stop mkdocs serve and run again.

What I would love to have …

• either a option to do periodic re-renders (e.g., rerender these pages every 10s, so they are almost always up to date)
• provide a set of paths and rerender if they change (e.g. yaml file changed -> just trigger entire script again)

These should be opt-in so the plugin behaves as before, but allows e.g. setting a rerender_interval or paths_to_watch.

Thank you for considering! :)