remove citation because it won't format well

topics/single-cell/tutorials/scrna-case_trajectories/tutorial.bib

@@ -88,11 +88,3 @@ @article{Cakir2020
   title = {Comparison of visualization tools for single-cell {RNAseq} data},
   journal = {{NAR} Genomics and Bioinformatics}
 }
-
-@article{scanpytutorialsTrajectoryInference,
-	author = {Alex Wolf, Fidel Ramirez, Sergei Rybakov},
-	title = {{T}rajectory inference for hematopoiesis in mouse \— scanpy-tutorials 1.4.7.dev38+g3e4e434 documentation --- scanpy-tutorials.readthedocs.io},
-	howpublished = {\url{https://scanpy-tutorials.readthedocs.io/en/latest/paga-paul15.html}},
-	year = {2023},
-	note = {[Accessed 15-12-2023]},
-}

topics/single-cell/tutorials/scrna-case_trajectories/tutorial.md

@@ -46,7 +46,7 @@ Traditionally, we thought that differentiating or changing cells jumped between
 We will use the same sample from the previous three tutorials, which contains largely T-cells in the thymus. We know T-cells differentiate in the thymus, so we would assume that we would capture cells at slightly different time points within the same sample. Furthermore, our cluster analysis alone showed different states of T-cells. Now it's time to look further!
 
 > <comment-title>Tutorial from Scanpy</comment-title>
-> Please note, this tutorial is largely based on the trajectories tutorial found [on the Scanpy site itself](https://scanpy-tutorials.readthedocs.io/en/latest/paga-paul15.html) {% cite scanpytutorialsTrajectoryInference %}.
+> Please note, this tutorial is largely based on the trajectories tutorial found [on the Scanpy site itself](https://scanpy-tutorials.readthedocs.io/en/latest/paga-paul15.html).
 {: .comment}
 
 > <agenda-title></agenda-title>