DOC: improving example

[realead]

• closes BUG: value counts with mixed NaNs is oddly rendering #45222

This is a minimal fix: the example with strange output is replaced (even if the underlying problem is not fixed/should be fixed)

Now the output in the current version is:

Index([None, NaT, True], dtype='object')

[jreback]

I think we actually need to fix this for 1.4 (the actual issue which i think is just the repr), e.g. these are already separate things IIUC

[realead]

@jreback I've proposed a fix for repr-issue in #45283. Not sure it is good to make such a change shortly before release (and thus this much more minimal PR) also probably some discussion needed what is actually the desired and consistent behavior (probably not only series are affected).

[jreback]

closing in favor of #45283

[jreback]

@jreback I've proposed a fix for repr-issue in #45283. Not sure it is good to make such a change shortly before release (and thus this much more minimal PR) also probably some discussion needed what is actually the desired and consistent behavior (probably not only series are affected).

yeah i think your change is fine