remove white spaces

Co-authored-by: Abdoelnaser M Degoot <degoot@aims.ac.za>

Author: avallecam

episodes/vaccine-comparisons.Rmd

@@ -60,8 +60,8 @@ Vaccination programs using infection-blocking vaccines have two benefits:
 
 We will illustrate this using results from `model_default()` in `{epidemics}`. The `model_default()` function implements a standard SEIR (Susceptible-Exposed-Infected-Recovered) model with vaccination compartments. Using the contact matrix and parameters from the COVID-19 outbreak example in [Modelling interventions](../episodes/modelling-interventions.md) we will investigate the impact of two vaccination programs on the number of infections. For this hypothetical scenario, we will assume that vaccination programs start on day 0 and continue to be in place for 150 days. We will assume all age groups are vaccinated at the same rate in each program as follows:
 
-+ vaccination program 01 : vaccination rate 0.001
-+ vaccination program 02 : vaccination rate 0.01.
++ vaccination program 01: vaccination rate 0.001
++ vaccination program 02: vaccination rate 0.01.
 
 
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