diff --git a/README.md b/README.md
index c58e3c55..8dca3741 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,7 @@ CARA – COVID Airborne Risk Assessment tool
 © Copyright 2020-2021 CERN. All rights not expressly granted are reserved.
 
 **For use of the CARA model**
+
 Henriques A, Mounet N, Aleixo L, Elson P, Devine J, Azzopardi G, Andreini M, Rognlien M, Tarocco N, Tang J. (2022). Modelling airborne transmission of SARS-CoV-2 using CARA: risk assessment for enclosed spaces. _Interface Focus 20210076_. https://doi.org/10.1098/rsfs.2021.0076
 
 Reference on the Short-range expiratory jet model from: