update citation

app.py

@@ -20,9 +20,10 @@ A pair of genes are said to be co-expressed when their expression is correlated
 is often a marker for genes to be involved in similar processes. 
 
 To Cite:
-MJ O'Meara, JR Rapala, CB Nichols, C Alexandre, B Billmyre, JL Steenwyk, A Alspaugh,
-TR O'Meara CryptoCEN: A Co-Expression Network for Cryptococcus neoformans reveals
-novel proteins involved in DNA damage repair
+    O'Meara MJ, Rapala JR, Nichols CB, Alexandre C, Billmyre RB, Steenwyk JL, A Alspaugh JA, O'Meara TR
+    CryptoCEN: A Co-Expression Network for Cryptococcus neoformans reveals novel proteins involved in DNA damage repair.
+    PLoS Genet 20(2): e1011158. (2024) https://doi.org/10.1371/journal.pgen.1011158
+
 * Code available at https://github.com/maomlab/CalCEN/tree/master/vignettes/CryptoCEN
 * Full network and dataset: https://huggingface.co/datasets/maomlab/CryptoCEN