Add citation file and how to cite

CITATION.cff

@@ -0,0 +1,50 @@
+cff-version: 1.2.0
+
+title: "siibra-python"
+
+abstract: |
+  siibra is a Python client to a brain atlas framework that integrates brain
+  parcellations and reference spaces at different spatial scales, and connects
+  them with a broad range of multimodal regional data features. It aims to
+  facilitate programmatic and reproducible incorporation of brain parcellations
+  and brain region features from different sources into neuroscience workflows.
+
+message: "If you use this software, please cite it as below."
+
+license: Apache License, Version 2.0
+
+repository-code: https://github.com/FZJ-INM1-BDA/siibra-python
+
+version: v0.4a75
+
+date-released: 2023-10-23
+
+identifiers:
+  - description: Machine learning for neuroimaging with scikit-learn
+    type: doi
+    value: 10.5281/zenodo.10033763
+
+contact:
+  - given-names: Timo
+    family-names: Dickscheid
+    email: [email protected]
+    affiliation: INM-1, Forschungszentrum Juelich, Germany
+
+authors:
+  - family-names: Dickscheid
+    given-names: Timo
+    orcid: https://orcid.org/0000-0002-9051-3701
+  - family-names: Gui
+    given-names: Xiaoyun
+  - family-names: Simsek
+    given-names: Ahmet Nihat 
+  - family-names: Koehnen
+    given-names: Louisa
+  - family-names: Marcenko
+    given-names: Vadim
+  - family-names: Schiffer
+    given-names: Christian
+  - family-names: Bludau
+    given-names: Sebastian
+  - family-names: Amunts
+    given-names: Katrin

README.rst

@@ -119,3 +119,14 @@ This software code is funded from the European Union’s Horizon 2020 Framework
    :target: https://siibra-python.readthedocs.io/en/latest/?badge=latest
 .. |doi| image:: https://zenodo.org/badge/DOI/10.5281/zenodo.7885729.svg
    :target: https://doi.org/10.5281/zenodo.7885729
+
+
+.. cite-start
+How to cite
+-----------
+Please cite accoding to citation file (CITATION.cff) of the version used or all
+versions by `Timo Dickscheid, Xiayun Gui, Ahmet Nihat Simsek, Vadim Marcenko,
+Louisa Köhnen, Sebastian Bludau, & Katrin Amunts. (2023). siibra-python -
+Software interface for interacting with brain atlases (v0.4a47). Zenodo.
+https://doi.org/10.5281/zenodo.7885729`.
+.. cite-ends

docs/index.rst

@@ -12,11 +12,12 @@ siibra - Software interface for interacting with brain atlases
    start
    concepts
    step-by-step
-   contribute
-   acknowledgements
    api
    create_preconfiguration
    developer
+   contribute
+   acknowledgements
+   cite
 
 ..
     Indices and tables