[simple-scan] Update screenshot and instruction how to select scanner

[Bartosz <bkosiorek src gnome org>]

commit 19ab7d28d5b422ef0c9a0aa178b6f88f96a29d64
Author: Bartosz Kosiorek <gang65 poczta onet pl>
Date:   Fri Feb 28 20:06:58 2020 +0100

    Update screenshot and instruction how to select scanner

 help/C/figures/preferences.png  | Bin 27734 -> 18646 bytes
 help/C/scanner.page             |  21 ++-------------------
 help/fr/figures/preferences.png | Bin 29982 -> 19892 bytes
 help/hu/figures/preferences.png | Bin 29338 -> 19414 bytes
 help/pl/figures/preferences.png | Bin 29195 -> 19532 bytes
 5 files changed, 2 insertions(+), 19 deletions(-)
---
diff --git a/help/C/figures/preferences.png b/help/C/figures/preferences.png
index edfd164..1906738 100644
Binary files a/help/C/figures/preferences.png and b/help/C/figures/preferences.png differ
diff --git a/help/C/scanner.page b/help/C/scanner.page
index 6a5d19b..3d57731 100644
--- a/help/C/scanner.page
+++ b/help/C/scanner.page
@@ -15,30 +15,13 @@
         <include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"; />
         <link type="guide" xref="index#acquire"/>
     </info>
-  
+
        <title>Selecting a Scanner</title>
 
     <p>
-    If you have multiple scanning devices you can change the selected device:
+    If you have multiple scanning devices you can change device on main page.
     </p>
-    <steps>
-      <item>
-        <p>Press the menu button in the top-right corner of the window and select
-        <gui style="menuitem">Preferences</gui>.</p>
-      </item>
-      <item>
-        <p>Select <gui style="tab">Scanning</gui>.</p>
-      </item>
-      <item>
-        <p>Change the <gui>Scanner</gui> value.</p>
-      </item>
-      <item>
-        <p>Close the dialog.</p>
-      </item>
-    </steps>
-
 
-    <media type="image" src="figures/preferences.png"/>
     <p>
     Local scanners are automatically detected each time <app>Document Scanner</app>
     starts and each time you plug in a USB scanner. If you connect a network
diff --git a/help/fr/figures/preferences.png b/help/fr/figures/preferences.png
index a1dcb17..0a97157 100644
Binary files a/help/fr/figures/preferences.png and b/help/fr/figures/preferences.png differ
diff --git a/help/hu/figures/preferences.png b/help/hu/figures/preferences.png
index 426a470..4913b4d 100644
Binary files a/help/hu/figures/preferences.png and b/help/hu/figures/preferences.png differ
diff --git a/help/pl/figures/preferences.png b/help/pl/figures/preferences.png
index 18dbde2..968a37c 100644
Binary files a/help/pl/figures/preferences.png and b/help/pl/figures/preferences.png differ