add pointer to doc.obnam.org

1 files changed, 4 insertions, 1 deletions

diff --git a/index.mdwn b/index.mdwn
index a505209..0f62df4 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -5,7 +5,10 @@ Obnam is starting over from scratch. See [blog
 post](https://blog.liw.fi/posts/2020/10/16/obnam2_-_a_new_backup_system/).
 
 Everything on this site is obsolete information and doesn't apply to
-Obnam2.
+Obnam2. Obnam2 acceptance criteria are documented using [Subplot][],
+and are on [docs.obnam.org](https://doc.obnam.org/).
+
+[Subplot]: https://subplot.liw.fi/
 
 This site will eventually be updated. Help is welcome.