A guide on creating a Python Grasshopper component in RIR

I posted a new guide on creating a custom GHPython component in Grasshopper that is Revit aware.

I hope it shows how easy it is to create a customer Python component that interacts with Revit and Rhino at the same time: https://github.com/mcneel/rhino.inside/blob/master/Autodesk/Revit/doc/ghpython-in-revit.md