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@@ -132,6 +132,8 @@ METADAPT-B is used over QUIC for communication over networks such as the
 Internet.
 
 ### METADAPT-A
+![Diagram of a METADAPT-A MMB.](../assets/metadapt-a-mmb-diagram.png)
+
 METADAPT-A requires a transport which offers a single full-duplex data stream
 that persists for the duration of the connection. All transactions are
 multiplexed onto this single stream. Each MMB contains a 12-octet long header,