Translations:Release notes 0.21/88/en

From FreeCAD Documentation

Simulation result of the imaginary part of the magnetic flux density in
and around a copper wire that is flown through by electric current at
a frequency of 100 kHz.
This model is available via the FEM Examples.
For more info about this model, see section 14 of the Elmer Tutorials.
The Magnetodynamic equation was added. With this it is possible to perform electromagnetic simulations.

Pull request #8380