update content

Author: avallecam

episodes/contact-matrices.Rmd

@@ -138,7 +138,9 @@ After downloading the survey, generate a symmetric contact matrix for Zambia usi
 + [0,20)
 + 20+
 
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+:::::::::::::::::::::::: instructor 
 
 ```{r polymod_poland}
 contact_data_zambia <- contact_matrix(
@@ -149,8 +151,6 @@ contact_data_zambia <- contact_matrix(
 contact_data_zambia
 ```
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-
 
 ::::::::::::::::::::::::::::::::::::: callout
 ## Synthetic contact matrices