remove an empty instructor call.

Degoot-AM · avallecam · commit d7aab8c688c5 · 2026-03-23T18:41:11.000Z
diff --git a/episodes/contact-matrices.Rmd b/episodes/contact-matrices.Rmd
@@ -42,13 +42,6 @@ library(contactsurveys)
 library(socialmixr)
 ```
 
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 ## The contact matrix
 
 The basic contact matrix represents the amount of contact or mixing within and between different subgroups of a population. The subgroups are often age categories but can also be:
