[evince] help: Add new icon under figures to meson.build

[Andre Klapper <aklapper src gnome org>]

commit de17f07d7afa500e9a4dfefc9fa8b6962624d5a8
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat Mar 6 07:31:05 2021 +0100

    help: Add new icon under figures to meson.build

 help/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/help/meson.build b/help/meson.build
index b6865e14..9be14edc 100644
--- a/help/meson.build
+++ b/help/meson.build
@@ -96,6 +96,7 @@ if enable_user_doc
   media = [
     'figures/add-text-annotation.png',
     'figures/annotations-nav-to-page.png',
+    'figures/emblem-system-symbolic.svg',
     'figures/evincelogo.png',
     'figures/evince-trail.png',
     'figures/print-select.png',