Singular introduction session

static/fpc/teaser/index.html

@@ -27,7 +27,7 @@ <h4>Welcome to the FPC 2024 teaser</h4>
 							could be useful to you:
 						</p>
 
-						<h2>Introduction sessions</h2>
+						<h2>Introduction session</h2>
 						<p>
 							We will be hosting an introduction session to get familiar with how a programming contest works. This
 							introduction session will take place on <strong>April 30th</strong> in the afternoon. There is no need