docs: fix bib references (#123)

* docs: fix bib references

* docs: remove abstracts from bib file

* docs: add citation file

* docs: add joss badge

CITATION.cff

@@ -0,0 +1,44 @@
+cff-version: "1.2.0"
+authors:
+- family-names: Murray
+  given-names: Steven G.
+  orcid: "https://orcid.org/0000-0003-3059-3823"
+- family-names: Pober
+  given-names: Jonathan
+  orcid: "https://orcid.org/0000-0002-3492-0433"
+- family-names: Kolopanis
+  given-names: Matthew
+  orcid: "https://orcid.org/0000-0002-2950-2974"
+contact:
+- family-names: Murray
+  given-names: Steven G.
+  orcid: "https://orcid.org/0000-0003-3059-3823"
+doi: 10.5281/zenodo.11127253
+message: If you use this software, please cite our article in the
+  Journal of Open Source Software.
+preferred-citation:
+  authors:
+  - family-names: Murray
+    given-names: Steven G.
+    orcid: "https://orcid.org/0000-0003-3059-3823"
+  - family-names: Pober
+    given-names: Jonathan
+    orcid: "https://orcid.org/0000-0002-3492-0433"
+  - family-names: Kolopanis
+    given-names: Matthew
+    orcid: "https://orcid.org/0000-0002-2950-2974"
+  date-published: 2024-05-09
+  doi: 10.21105/joss.06501
+  issn: 2475-9066
+  issue: 97
+  journal: Journal of Open Source Software
+  publisher:
+    name: Open Journals
+  start: 6501
+  title: "21cmSense v2: A modular, open-source 21 cm sensitivity
+    calculator"
+  type: article
+  url: "https://joss.theoj.org/papers/10.21105/joss.06501"
+  volume: 9
+title: "21cmSense v2: A modular, open-source 21 cm sensitivity
+  calculator"

README.rst

@@ -14,6 +14,8 @@
   :alt: Documentation Status
 .. image:: https://img.shields.io/github/license/Ileriayo/markdown-badges?style=flat
   :target: ./LICENSE.rst
+.. image:: https://joss.theoj.org/papers/10.21105/joss.06501/status.svg
+   :target: https://doi.org/10.21105/joss.06501
 
 A python package for calculating the expected sensitivities of 21cm experiments
 to the Epoch of Reionization and/or Cosmic Dawn power spectrum.