[gnome-user-docs] Improve printer ink level description

[David King <davidk src gnome org>]

commit 37bd0aa49c89be3716db2605bbe5b305e1df896e
Author: David King <amigadave amigadave com>
Date:   Fri Jul 19 18:57:43 2019 +0100

    Improve printer ink level description
    
    Add that the ink or toner level is shown only if it is available.
    
    Fixes: https://gitlab.gnome.org/GNOME/gnome-user-docs/issues/17

 gnome-help/C/printing-inklevel.page | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gnome-help/C/printing-inklevel.page b/gnome-help/C/printing-inklevel.page
index 446cf0d8..7003b706 100644
--- a/gnome-help/C/printing-inklevel.page
+++ b/gnome-help/C/printing-inklevel.page
@@ -8,6 +8,7 @@
     <revision pkgversion="3.4.0" date="2012-02-19" status="candidate"/>
     <revision pkgversion="3.13.92" date="2014-09-22" status="candidate"/>
     <revision pkgversion="3.18" date="2015-09-29" status="final"/>
+    <revision pkgversion="3.33.3" date="2019-07-19" status="candidate"/>
 
     <credit type="author">
       <name>Anita Reitere</name>
@@ -29,7 +30,8 @@
   other information.</p>
 
   <p>Some printers report toner or ink levels to the computer, which can be
-  found in the <gui>Printers</gui> panel in <app>Settings</app></p>
+  found in the <gui>Printers</gui> panel in <app>Settings</app>. The ink
+  level will be shown with the printer details if it is available.</p>
 
   <p>The drivers and status tools for most HP printers are provided by
   the HP Linux Imaging and Printing (HPLIP) project. Other