diff --git a/README.md b/README.md
index d0eec8c..cdf44b4 100644
--- a/README.md
+++ b/README.md
@@ -3,9 +3,15 @@
 An HTTP server that can run behind a firewall by connecting out to a relay.
 
 ```
+Outside the tunnel
 +--------+         +------------+        +-------------+
-| Client |-------->| PTTH relay |<-------| PTTH server |
+| Client | ------> | PTTH relay | <----- | PTTH server |
 +--------+         +------------+        +-------------+
+
+Inside the tunnel
++--------+         --------------        +-------------+
+| Client | ----------------------------> |   Server    |
++--------+         --------------        +-------------+
 ```
 
 The server can run behind a firewall, because it is actually a special HTTP
@@ -26,7 +32,7 @@ the terminal. Copy that to the relay.
 
 Configuring the relay:
 
-- Copy ptth_relay onto the server
+- Copy ptth_relay onto the server (A Dockerfile is provided with no guarantees)
 - Create ptth_relay.toml in the relay's working dir
 - Add the tripcodes of all servers to the server_tripcodes table