[gnome-user-docs] Update name of button to add a new printer in 3.32

[Andre Klapper <aklapper src gnome org>]

commit 5b4057538fc39a1be0bc69571a4b67f678ac5779
Author: Andre Klapper <a9016009 gmx de>
Date:   Sat Mar 16 15:31:55 2019 +0100

    Update name of button to add a new printer in 3.32

 gnome-help/C/printing-setup.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gnome-help/C/printing-setup.page b/gnome-help/C/printing-setup.page
index 3354579a..901b1f75 100644
--- a/gnome-help/C/printing-setup.page
+++ b/gnome-help/C/printing-setup.page
@@ -85,7 +85,7 @@
       type in your password when prompted.</p>
     </item>
     <item>
-      <p>Click the <gui>+</gui> button.</p>
+      <p>Click the <gui style="button">Add a Printer…</gui> button.</p>
     </item>
     <item>
       <p>In the pop-up window, select your new printer. Click