[gnome-tweak-tool] readme: trivial, adjust buglist link

[Jeremy Bicha <jbicha src gnome org>]

commit 9d506a78f3ed31e728e4d08ec0fcf788de2b42cf
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sat Jun 10 21:53:52 2017 -0400

    readme: trivial, adjust buglist link

 README |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/README b/README
index d7ae157..556ac60 100644
--- a/README
+++ b/README
@@ -61,4 +61,4 @@ BUGS
 ----
 https://bugzilla.gnome.org/enter_bug.cgi?product=gnome-tweak-tool
 
-https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A"gnome-tweak-tool";
+https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3Agnome-tweak-tool