[office/tellico] doc: Improve help about image location options

Git commit 8de106a6c0a38066b65e373de96ef134a79a9ecc by Robby Stephenson.
Committed on 28/11/2024 at 15:30.
Pushed by rstephenson into branch 'master'.

Improve help about image location options

M  +5    -3    doc/configuration.docbook

https://invent.kde.org/office/tellico/-/commit/8de106a6c0a38066b65e373de96ef134a79a9ecc

diff --git a/doc/configuration.docbook b/doc/configuration.docbook
index 9b80cb15..bbb9b880 100644
--- a/doc/configuration.docbook
+++ b/doc/configuration.docbook
@@ -32,9 +32,11 @@ Some minor settings can only be changed by editing the configuration file itself
 </screenshot>
 
 <para>
-The <guilabel>General Options</guilabel> control the general behavior. Images may be included
-in the data files, or saved separately in the &appname; application folder. Also, when &appname;
-is started, it can automatically reopen the last data file that was open.
+The <guilabel>General Options</guilabel> control the general behavior. Images may be saved
+in the data file itself, saved separately in the common &appname; application folder, or saved to
+a directory with the same name as the data file, with <emphasis>_files</emphasis> appended to the
+name. For collections with many images, saving them in the data file is much slower to use.
+When &appname; is started, it can automatically reopen the last data file that was open.
 The <interface>Quick Filter</interface> in the toolbar is useful
 for easily filtering through your collection and can utilize regular expressions.
 </para>