[recipes] Add Sylvia to recipe author credits

[Matthias Clasen <matthiasc src gnome org>]

commit 8eb2fec8efaa086864a970a200eed0cc3067a7b0
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Feb 17 09:45:56 2017 -0500

    Add Sylvia to recipe author credits

 src/gr-about-dialog.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-about-dialog.c b/src/gr-about-dialog.c
index 336f039..f9e8acf 100644
--- a/src/gr-about-dialog.c
+++ b/src/gr-about-dialog.c
@@ -627,6 +627,7 @@ gr_about_dialog_new (void)
                 "Adrià Arrufat",
                 "Emmanuele Bassi",
                 "Adelia",
+                "Sylvia",
                 NULL
         };
         g_autoptr(GdkPixbuf) logo = NULL;