Update README.md

README.md

@@ -26,7 +26,7 @@ et al., 2020)](https://jmlr.org/papers/volume21/20-074/20-074.pdf) fine-tuned wi
 
 The TrueTeacher dataset contains model-generated summaries of articles from the train split of the **CNN/DailyMail** dataset [(Hermann et al., 2015)](https://proceedings.neurips.cc/paper_files/paper/2015/file/afdec7005cc9f14302cd0474fd0f3c96-Paper.pdf) 
 which are annotated for factual consistency using **FLAN-PaLM 540B** [(Chung et al.,2022)](https://arxiv.org/pdf/2210.11416.pdf). 
-Summaries were generated using summarization models which were trained on the **XSum** dataset [(Narayan207et al., 2018)](https://aclanthology.org/D18-1206.pdf).
+Summaries were generated using summarization models which were trained on the **XSum** dataset [(Narayan et al., 2018)](https://aclanthology.org/D18-1206.pdf).
 
 The input format for the model is: "premise: GROUNDING_DOCUMENT hypothesis: HYPOTHESIS_SUMMARY".