tbox: update homepage

Author: daeho-ro

Formula/t/tbox.rb

@@ -1,6 +1,6 @@
 class Tbox < Formula
   desc "Glib-like multi-platform C library"
-  homepage "https://docs.tboox.org/"
+  homepage "https://github.com/tboox/tbox"
   url "https://github.com/tboox/tbox/archive/refs/tags/v1.7.6.tar.gz"
   sha256 "2622de5473b8f2e94b800b86ff6ef4a535bc138c61c940c3ab84737bb94a126a"
   license "Apache-2.0"