Metadynamics keyword "atoms" is not recognized

[selimsami]

Describe the bug Metadynamics keyword "atoms" is not recognized. This is supposed to apply the RMSD bias to only a selection of atoms

To Reproduce Steps to reproduce the behaviour:

1. Run a calculation with the input file containing:

$metadyn
   atoms=1-3
$end

2. Output file says:

[WARNING] Please study the warnings concerning your input carefully
-3- set_metadyn: the key 'atoms' is not recognized by metadyn

[toxtran]

It does not support such keyword. See the list of possible keywords here:

https://github.com/grimme-lab/xtb/blob/f02873e4dc4a3070f355eaf9db37e90a8a0123c4/src/set_module.f90#L2526-L2553

[selim-genesis]

@toxtran , thanks. but it's listed on the documentation:

https://xtb-docs.readthedocs.io/en/latest/mtd.html

[foxtran]

Haha. That's funny. Definitely, it is a bug.