Librarian Bot: Add base_model information to model

README.md

@@ -4,12 +4,13 @@ tags:
 - generated_from_trainer
 datasets:
 - samsum
-model-index:
-- name: t5-dialogue-summarization
-  results: []
 metrics:
 - accuracy
 pipeline_tag: summarization
+base_model: t5-small
+model-index:
+- name: t5-dialogue-summarization
+  results: []
 ---
 
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