Adding the Desighn Notes

[GProtoZeroW]

Fabrice, I would like to contribute to adding on some of the other NGSpice solvers (noise, etc) but I have not totally figured out how you coiled PySpice around the NgSpice engine. Could you add those docs to the missing https://pyspice.fabrice-salvaire.fr/design-notes.html so that myself and others can assist you and PySpice in adding to its capabilities

[FabriceSalvaire]

Sorry for long delay ...

Well up to know you have to read the code, PySpice is not a large code base, but you must be familiar with Python tricks like metaclass.

Anyway I could answer questions here