[graphics/okular] doc: correct grammatical error

[Charlie Arehart]

Git commit 16a4015b68868b44356a96517a11ba6a646dbc04 by Charlie Arehart.
Committed on 17/05/2021 at 01:08.
Pushed by sander into branch 'master'.

correct grammatical error

M  +1    -1    doc/index.docbook

https://invent.kde.org/graphics/okular/commit/16a4015b68868b44356a96517a11ba6a646dbc04

diff --git a/doc/index.docbook b/doc/index.docbook
index 3234ea3a0..7c83ddc53 100644
--- a/doc/index.docbook
+++ b/doc/index.docbook
@@ -92,7 +92,7 @@ Context menu actions like Rename Bookmarks etc.)
 			</para>
 			<important>
 			  <para>
-			    The new document will be opened in a new tab should the <guilabel>Open new files in tabs</guilabel> option on the <link linkend="configgeneral">General configuration page</link> is checked.
+			    The new document will be opened in a new tab if the <guilabel>Open new files in tabs</guilabel> option on the <link linkend="configgeneral">General configuration page</link> is checked.
 			  </para>
                           <para>
                               You can close the tab by clicking with &MMB; on it.