Document multi-turn configuration

README.md

@@ -4,6 +4,10 @@ configs:
   data_files:
   - split: train
     path: single_turn/train/*.tar
+- config_name: multi_turn
+  data_files:
+  - split: train
+    path: multi_turn/train/*.tar
 ---
 
 # EchoDialogue
@@ -16,4 +20,6 @@ Each single-turn sample contains query audio, response audio, dialogue text,
 emotion annotations, speaking-style annotations, and reasoning metadata.
 Original UUIDs, storage paths, and source filenames are not published.
 
-The multi-turn configuration will be added separately.
+The multi-turn configuration contains five-turn conversations. Every turn
+includes query and response audio and text, normalized query coarse- and
+fine-grained emotion labels, response emotion, and reasoning metadata.