Update posters.md

content/info/call-participation/posters.md

@@ -4,7 +4,7 @@ layout: page
 permalink: /year/2025/info/call-participation/posters
 contact: posters@ieeevis.org
 active_nav: "Contribute"
-sidebar: call-for-posters
+sidebar: call-for-participation
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 The IEEE VIS 2025 Poster Program offers a timely venue to present and discuss original work or highlights of recent work published or presented in another venue (please see the plagiarism statement in the end) through a forum that encourages graphical presentation, demonstration, and active engagement with IEEE VIS participants.