Document nearly all data sources in doc/data_sources.rst

.github/pull_request_template.md

@@ -5,9 +5,10 @@ Closes # (if applicable).
 
 ## Checklist
 
-- [ ] I tested my contribution locally and it seems to work fine.
+- [ ] I tested my contribution locally and it works as intended.
 - [ ] Code and workflow changes are sufficiently documented.
 - [ ] Changed dependencies are added to `envs/environment.yaml`.
-- [ ] Changes in configuration options are added in all of `config.default.yaml`.
-- [ ] Changes in configuration options are also documented in `doc/configtables/*.csv`.
+- [ ] Changes in configuration options are added in `config/config.default.yaml`.
+- [ ] Changes in configuration options are documented in `doc/configtables/*.csv`.
+- [ ] Sources of newly added data are documented in `doc/data_sources.rst`.
 - [ ] A release note `doc/release_notes.rst` is added.

README.md

@@ -105,4 +105,4 @@ We strongly welcome anyone interested in contributing to this project. If you ha
 The code in PyPSA-Eur is released as free software under the
 [MIT License](https://opensource.org/licenses/MIT), see [`doc/licenses.rst`](doc/licenses.rst).
 However, different licenses and terms of use may apply to the various
-input data.
+input data, see [`doc/data_sources.rst`](doc/data_sources.rst).