Librarian Bot: Add base_model information to model

README.md

@@ -187,6 +187,7 @@ inference:
     length_penalty: 0.3
     encoder_no_repeat_ngram_size: 3
     num_beams: 4
+base_model: allenai/led-large-16384
 model-index:
 - name: pszemraj/led-large-book-summary
   results: