Metropolis Hastings, Legacy version

[smjanke]

https://github.com/NQCD/NonadiabaticMolecularDynamics.jl/blob/f194f7380535af288303c15967ac2312bd6e85e9/docs/src/initialconditions/samplingmethods/metropolishastings.md#L29

Why are you describing the legacy version if you plan to eliminate it, anyway? Does it offer any advantages or other features than the current version? In case it doesn't do the latter and really has no reason why anyone would use it over the AdvanceHM.jl, I would not mention it in the documentation, since you're planing to delete it, anyway. You don't want anyone to start using it.

It is very nicely explained section in terms of parameters and output.

[jamesgardner1421]

Yeah I got myself into a bit of an awkward situation here by having both. Currently this one allows for some stuff that the newer version doesn't and I haven't gotten around to porting everything over just yet. So I'm not sure I'll be deleting it any time soon and thought it best to include just in case. Though hopefully at some point I'll improve the new version enough so that it has all the features of the old version and can delete it then.

I'll leave the issue open to remind us to address this in the future.

[smjanke]

In that case, I think I wouldn't mention that you plan to eliminate it.

Good idea to leave it open.

[reinimaurer1]

The docs should only mention the new version, but we don't have to delete the old one

[Alexsp32]

Maybe update docs

[Alexsp32]

#325 removes the legacy method from the docs since everything should be covered in some way by the interface to AdvancedMH.jl