[gnome-music] help: fix XML tag

[Piotr Drąg <piotrdrag src gnome org>]

commit 5cfe8f96d234d85497b93018fe730944142b36bf
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Oct 8 20:25:51 2015 +0200

    help: fix XML tag
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756256

 help/C/playlist-create-artists.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/playlist-create-artists.page b/help/C/playlist-create-artists.page
index 18c9207..e21bf19 100644
--- a/help/C/playlist-create-artists.page
+++ b/help/C/playlist-create-artists.page
@@ -22,7 +22,7 @@
   <title>Create playlists using artists</title>
 
   <p>You can view all the artists and their songs by clicking on the
-  <gui syle="button">Artists</gui> button.</p>
+  <gui style="button">Artists</gui> button.</p>
 
   <steps>
     <title>To create a new playlist while in <em>Artists</em> view:</title>