remove zenodo citation from docs

Author: agladstein

docs/citation.md

@@ -2,15 +2,7 @@
 
 # Citing tskit
 
-If you use `tskit` in your work, please cite the [zenodo DOI](<https://zenodo.org/records/15121152>) (*Remember to update the version to the version you used*):
-
-> Jerome Kelleher, Ben Jeffery, Yan Wong, Peter Ralph, Georgia Tsambos, Shing Hei Zhan, 
-> Kevin R. Thornton, Daniel Goldstein, Nate Pope, lkirk, Anthony Wilder Wohns, Duncan 
-> Mbuli-Robertson, pyup.io bot, Graham Gower, Hugo van Kemenade, Brian Zhang, Murillo F. 
-> Rodrigues, Castedo Ellerman, Duncan Palmer, … Saurabh Belsare. (2025). tskit-dev/tskit: 
-> Python 0.6.2 (0.6.2). Zenodo. https://doi.org/10.5281/zenodo.15121152
-
-We also recommend citing the [2024 ARG Genetics paper](<https://doi.org/10.1093/genetics/iyae100>) and the [2016 msprime PLOS Computational Biology paper](<http://dx.doi.org/10.1371/journal.pcbi.1004842>):
+If you use `tskit` in your work, we recommend citing the [2024 ARG Genetics paper](<https://doi.org/10.1093/genetics/iyae100>) and the [2016 msprime PLOS Computational Biology paper](<http://dx.doi.org/10.1371/journal.pcbi.1004842>):
 > Yan Wong, Anastasia Ignatieva, Jere Koskela, Gregor Gorjanc, Anthony W 
 > Wohns, Jerome Kelleher, *A general and efficient representation of ancestral 
 > recombination graphs*, Genetics, Volume 228, Issue 1, September 2024, iyae100, 
@@ -32,21 +24,6 @@ If you use summary statistics, please cite the
 Bibtex records:
 
 ```bibtex
-% UPDATE TO THE VERSION YOU USED
-@software{Kelleher2025tskitzenodo,
-  author    = {Jerome Kelleher and Ben Jeffery and Yan Wong and Peter Ralph and Georgia Tsambos and 
-               Shing Hei Zhan and Kevin R. Thornton and Daniel Goldstein and Nate Pope and lkirk and 
-               Anthony Wilder Wohns and Duncan Mbuli-Robertson and pyup.io bot and Graham Gower and 
-               Hugo van Kemenade and Brian Zhang and Murillo F. Rodrigues and Castedo Ellerman and 
-               Duncan Palmer and Clemens Weiss and Gertjan Bisschop and Jeremy Guez and Savita Karthikeyan and 
-               Hanbin Lee and Ao Zhang and Inés Rebollo and Saurabh Belsare},
-  title     = {tskit-dev/tskit: Python 0.6.2},
-  publisher = {Zenodo},
-  year      = {2025},
-  version   = {0.6.2},
-  doi       = {10.5281/zenodo.15121152}
-}
-
 @article{Wong2024ARGs,
   author    = {Wong, Yan and Ignatieva, Anastasia and Koskela, Jere and Gorjanc, Gregor and 
                Wohns, Anthony W and Kelleher, Jerome},
@@ -80,5 +57,4 @@ Bibtex records:
   year      = {2020},
   doi       = {10.1534/genetics.120.303253}
 }
-
 ```