DOC: Add example for `maicos.lib.math.correlation_time`

[PicoCentauri]

Location of the issue

https://maicos-analysis.org/stable/api-documentation/math.html#maicos.lib.math.correlation_time

Description of the issue

I think, it would be nice to have an example here.

Suggested fix or improvement (optional)

Maybe create a noise time series with some correlation time. Compute the correlation time with this function and maybe also plot it with maicos.lib.math.correlation so that people see it is reasonable.

Additional context

No response

[MalathiBalaraman31]

@PicoCentauri Hi! 👋

I’d be happy to work on this if it’s available.
I can add a clear, minimal example demonstrating maicos.lib.math.correlation_time, possibly using a simple correlated noise time series as suggested, without changing any functionality.

Please let me know if a PR would be welcome. Thanks!

[PicoCentauri]

Sure happy to look at an example that is helpful for users.