diff --git a/slides/index.adoc b/slides/index.adoc
index 1217ad6..6ac8112 100644
--- a/slides/index.adoc
+++ b/slides/index.adoc
@@ -38,6 +38,8 @@ https://docs.asciidoctor.org/reveal.js-converter/latest/converter/features/[]
 
 image::swarm.png[height=580]
 
+== MAth
+
 [stem]
 ++++
 (a + b)^2 = a^2 + 2ab + b^2