diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 76dcf552..0b3c2d4f 100644
--- a/.github/workflows/ci.yaml
+++ b/.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
 
diff --git a/LICENSE.txt b/LICENSE.txt
index dc10fd32..87f6d959 100644
--- a/LICENSE.txt
+++ b/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
diff --git a/doc/index.rst b/doc/index.rst
index d366f5b7..38da623b 100644
--- a/doc/index.rst
+++ b/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
 =============
diff --git a/graphics/workflow.png b/graphics/workflow.png
new file mode 100644
index 00000000..ca3e4e29
Binary files /dev/null and b/graphics/workflow.png differ