[lightsoff] help: Mark the updated screenshot as translatable

[Piotr Drąg <piotrdrag src gnome org>]

commit 78381663614c739456e96a90aa8d61e759d192a0
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Fri Jan 3 19:27:47 2020 +0100

    help: Mark the updated screenshot as translatable
    
    It has text now.

 help/C/basic.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/basic.page b/help/C/basic.page
index 6a967a9..f275cea 100644
--- a/help/C/basic.page
+++ b/help/C/basic.page
@@ -44,7 +44,7 @@
 </list>        
 <figure>
   <desc>This shows the <app>Lights Off</app> pattern for level 3.</desc>
-  <media type="image" mime="image/png" src="figures/lo1.png" width="300" its:translate="no"></media>
+  <media type="image" mime="image/png" src="figures/lo1.png" width="300"></media>
 </figure>
 </section>