[gnome-pocket] Add another FIXME to the TODO list

[Bastien Nocera <hadess src gnome org>]

commit e4c7cdec6fce16ff660ba0b78a5dd2569de2ca8b
Author: Bastien Nocera <hadess hadess net>
Date:   Sat Sep 20 23:34:24 2014 +0200

    Add another FIXME to the TODO list

 TODO |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/TODO b/TODO
index 1d49446..1e1931c 100644
--- a/TODO
+++ b/TODO
@@ -3,3 +3,4 @@
 - Add function to archive or delete item
 - Add support for offline operations
 - Add excerpt? word_count? authors? videos? images?
+- Do cache_path work in g_thread_once()