add workflow rulegraph

.github/workflows/ci.yaml

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: : 2021 The PyPSA-Eur Authors
+# SPDX-FileCopyrightText: : 2021-2023 The PyPSA-Eur Authors
 #
 # SPDX-License-Identifier: CC0-1.0
 

LICENSE.txt

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright 2017-2021 The PyPSA-Eur Authors
+Copyright 2017-2023 The PyPSA-Eur Authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

doc/index.rst

@@ -101,6 +101,15 @@ Ministry for Education and Research (BMBF) <https://www.bmbf.de/en/index.html>`_
 as part of the `Stromnetze Research Initiative
 <http://forschung-stromnetze.info/projekte/grundlagen-und-konzepte-fuer-effiziente-dezentrale-stromnetze/>`_.
 
+Workflow Outline
+================
+
+.. image:: ../graphics/workflow.png
+
+.. note::
+    The graph above was generated using
+    ``snakemake --rulegraph -F | sed -n "/digraph/,/}/p" | dot -Tpng -o workflow.png``
+
 
 Documentation
 =============