Update the vdwradii dictionnary (where there is Van der Waals radius value for each atom type)

[KarinDuong]

We can add more value to it, with :

vdwradii_atomelements = mda.topology.tables.vdwradii
vdwradii_atomelements['the name of the atom type'] = the value

https://docs.mdanalysis.org/2.0.0/documentation_pages/topology/tables.html

And use this new dictionnary in guess_bound :

mol.atoms.guess_bonds(vdwradii= vdwradii_atomelements)

where mol is the variable that contain the mda universe.
https://docs.mdanalysis.org/1.1.1/documentation_pages/topology/guessers.html