[okular] doc: Update docs with the new switch tab option description

[Yuri Chornoivan]

Git commit 39cacd8482975b02148a3c1dd33afc7a022e9896 by Yuri Chornoivan.
Committed on 23/04/2020 at 08:53.
Pushed by yurchor into branch 'master'.

Update docs with the new switch tab option description

M  +-    --    doc/configure.png
M  +8    -2    doc/index.docbook

https://invent.kde.org/kde/okular/commit/39cacd8482975b02148a3c1dd33afc7a022e9896

diff --git a/doc/configure.png b/doc/configure.png
index 9b250815a..bd0f96111 100644
Binary files a/doc/configure.png and b/doc/configure.png differ
diff --git a/doc/index.docbook b/doc/index.docbook
index d7c1defea..9dbc4821d 100644
--- a/doc/index.docbook
+++ b/doc/index.docbook
@@ -34,8 +34,8 @@ Context menu actions like Rename Bookmarks etc.)
 			<!-- TRANS:ROLES_OF_TRANSLATORS -->
 		</authorgroup>
 		<legalnotice>&FDLNotice;</legalnotice>
-		<date>2020-01-08</date>
-		<releaseinfo>1.10 (Applications 20.04)</releaseinfo>
+		<date>2020-04-08</date>
+		<releaseinfo>1.11 (Applications 20.08)</releaseinfo>
 		<!-- Abstract about this handbook -->
 		<abstract>
 			<para>&okular; is a &kde; universal document viewer based on &kpdf; code.</para>
@@ -2230,6 +2230,12 @@ Context menu actions like Rename Bookmarks etc.)
 						</para>
 					</listitem>
 				</varlistentry>
+				<varlistentry>
+					<term><guilabel>Switch to existing tab if file is already open</guilabel></term>
+					<listitem>
+						<para>Whether &okular; should switch to a tab if the file is already open instead of opening a new tab. This option is disabled by default. Can be toggled only if <guilabel>Open new files in tabs</guilabel> is enabled.</para>
+					</listitem>
+				</varlistentry>
 				<varlistentry>
 					<term><guilabel>Obey DRM limitations</guilabel></term>
 					<listitem>