improve wording

Co-authored-by: Toby Hodges <[email protected]>
carpentries · Jun 12, 2023 · 46d4fed · 46d4fed
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diff --git a/episodes/introduction.md b/episodes/introduction.md
@@ -85,6 +85,11 @@ accessibility purposes'}`
 
 Callout sections can highlight information.
 
+They are sometimes used to emphasise particularly important points
+but are also used in some lessons to present "asides": 
+content that is not central to the narrative of the lesson,
+e.g. by providing the answer to a commonly-asked question.
+
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