[plasma/kwin] doc/kwindecoration: Fix minor typo

[Yuri Chornoivan]

Git commit 9667fc6493e0a060b4c14e9e848ae142db57e76e by Yuri Chornoivan.
Committed on 10/04/2021 at 07:54.
Pushed by yurchor into branch 'master'.

Fix minor typo

M  +1    -1    doc/kwindecoration/index.docbook

https://invent.kde.org/plasma/kwin/commit/9667fc6493e0a060b4c14e9e848ae142db57e76e

diff --git a/doc/kwindecoration/index.docbook b/doc/kwindecoration/index.docbook
index f425dd285..08c1cd444 100644
--- a/doc/kwindecoration/index.docbook
+++ b/doc/kwindecoration/index.docbook
@@ -111,7 +111,7 @@ The available options depend on the selected style.
 </sect2>
 
 <sect2>
-<title>Titelbar Buttons</title>
+<title>Titlebar Buttons</title>
 
 <para>This tab allows you to customize the button location on the titlebar. 
 You can drag buttons ⪚ the <guilabel>Application menu</guilabel> into the