diff --git a/README.md b/README.md
index 3e84a21..43c1742 100644
--- a/README.md
+++ b/README.md
@@ -61,3 +61,7 @@ If you want to monitor your container, or stop it, attach to the console with:
     docker attach ca219a461376
 
 You can also run this in a swarm (I do)!
+
+----
+## Extras Container
+There is an "extras" container with some additional MysticBBS mods pre-installed. You'll find info on that in the [armv7l-extras](https://dev.leenooks.net/leenooks/mysticbbs/blob/armv7l-extras/README.md) branch.