[gnome-klotski] Fix double tag in help.

[Arnaud B. <arnaudb src gnome org>]

commit 944673712aced7800197ba3806c526e8ec84f9d2
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Mar 17 11:33:29 2020 +0100

    Fix double tag in help.
    
    Thanks scootergrisen!
    
    Fixes #14.

 help/C/index.docbook | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/index.docbook b/help/C/index.docbook
index 7ae6652..3781055 100644
--- a/help/C/index.docbook
+++ b/help/C/index.docbook
@@ -231,7 +231,7 @@
        <!-- =========== The main window ============================== -->
        <sect2 id="gnotski-ui">
                <title>The main window</title>
-               <para>When you start <application>&app;</application>, the following window is 
displayed.</para>
+               <para>When you start &app;, the following window is displayed.</para>
 
                <!-- ==== Figure ==== -->
                <figure id="gnotski-figure-mainwindow">