Add IMDv3 protocol citation placeholder and instructions

- Uncomment IMDv3 citation section in references.rst
- Make citation visible in documentation
- Add clear instructions for when paper is published
- Include template format for final citation
- Resolves #5094

Author: Lavu

package/doc/sphinx/source/documentation_pages/references.rst

@@ -229,16 +229,18 @@ If you use H5MD files using
    pp. 18 – 26, 2021. doi:`10.25080/majora-1b6fd038-005.
    <https://www.doi.org/10.25080/majora-1b6fd038-005>`_
 
-.. comment::
-
-   If you use IMD capability with :mod:`MDAnalysis.coordinates.IMD.py`, please cite [IMDv3paper]_.
-
-   .. [IMDv3paper] Authors (YEAR).
-      IMDv3 Manuscript Title.
-      *Journal*, 185. doi:`insert-doi-here <https://doi.org/>`_
-
-.. todo:: Fill in the final IMDv3 citation once the paper is published.
-   See https://github.com/MDAnalysis/mdanalysis/issues/5094
+If you use IMD capability with :mod:`MDAnalysis.coordinates.IMD.py` to stream
+molecular dynamics simulation data via the IMDv3 protocol, please cite [IMDv3paper]_.
+
+.. [IMDv3paper] TODO: Add IMDv3 protocol paper citation here.
+   Once the IMDv3 protocol paper is published, replace this entry with the full citation.
+   See https://github.com/MDAnalysis/mdanalysis/issues/5094 for details.
+   
+   The citation should have the format:
+   
+   Authors (YEAR).
+   IMDv3 Protocol Paper Title.
+   *Journal*, Volume(Issue), pages. doi:`DOI <https://doi.org/DOI>`_
 
 .. _citations-using-duecredit: