[five-or-more] Added theme authors

[Robert Roth <robertroth src gnome org>]

commit 1b568f3bb2e93cf1f32b1edf24c3881d2ec4eed3
Author: Robert Roth <robert roth off gmail com>
Date:   Sun Sep 16 20:35:17 2018 +0300

    Added theme authors

 src/main.vala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/src/main.vala b/src/main.vala
index d53bf16..b89a580 100644
--- a/src/main.vala
+++ b/src/main.vala
@@ -128,7 +128,9 @@ public class FiveOrMoreApp: Gtk.Application
         };
 
         const string artists[] = {
-            null
+            "Callum McKenzie",
+            "Kenney.nl",
+            "Robert Roth",
         };
 
         const string documenters[] = {