[gnome-dictionary] help: Remove button is just a minus now

[Andre Klapper <aklapper src gnome org>]

commit 7e5c74223edeaf93da048aefbd686358f066e2d6
Author: Andre Klapper <a9016009 gmx de>
Date:   Mon Aug 9 16:31:44 2021 +0200

    help: Remove button is just a minus now

 help/C/sources-delete.page | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/help/C/sources-delete.page b/help/C/sources-delete.page
index 785e794..599f061 100644
--- a/help/C/sources-delete.page
+++ b/help/C/sources-delete.page
@@ -5,6 +5,7 @@
 
   <info>
     <revision pkgversion="3.6" version="0.1" date="2013-03-30" status="complete"/>
+    <revision pkgversion="40.0" version="0.2" date="2021-08-09" status="complete"/>
     <link type="guide" xref="sources#guide"/>
     <link type="seealso" xref="prob-retrieving-definition"/>
 
@@ -42,7 +43,7 @@
       <p>Select the dictionary source that you want to delete.</p>
     </item>
     <item>
-      <p>Press <gui style="button">Remove</gui>.</p>
+      <p>Press <gui style="button">-</gui>.</p>
     </item>
     <item>
       <p>A dialog will pop up asking you to confirm that you wish to