[swell-foop] help: Make the screenshot translatable

[Piotr Drąg <piotrdrag src gnome org>]

commit 48bb449df3b2153bb7728fc3c3409ba0165fcb92
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Jul 11 10:49:02 2020 +0200

    help: Make the screenshot translatable
    
    It contains an English word.

 help/C/playing-game.page | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/help/C/playing-game.page b/help/C/playing-game.page
index eb5998b..8f7edb3 100644
--- a/help/C/playing-game.page
+++ b/help/C/playing-game.page
@@ -30,6 +30,6 @@
     fall down to fill the space. If an entire column is cleared then the objects
     slide leftward to fill the gap.</p></item>
   </list>
-  <media its:translate="no" type="image" src="figures/start-game.png"/>
+  <media type="image" src="figures/start-game.png"/>
 </page>