diff --git a/Day 3 lecture.md b/Day 3 lecture.md
index 431c220..1671f0e 100644
--- a/Day 3 lecture.md	
+++ b/Day 3 lecture.md	
@@ -1,4 +1,4 @@
-Today's topic: text
+Today's topic: text, combining data with operators
 
 * How \r and \g work, ASR-33
 * Overstriking for hiding things, animating the command line