Made the references as list under APA section

README.md

@@ -170,8 +170,8 @@ If you use this model, please cite both the original GPT-2 and DistilBERT papers
 
 **APA:**
 
-Radford, A., et al. (2019). Language Models are Unsupervised Multitask Learners.
-Sanh, V., Debut, L., Chaumond, J., & Wolf, T. (2019). DistilBERT, a distilled version of BERT: smaller, faster, cheaper and lighter. arXiv preprint arXiv:1910.01108.
+- Radford, A., et al. (2019). Language Models are Unsupervised Multitask Learners.
+- Sanh, V., Debut, L., Chaumond, J., & Wolf, T. (2019). DistilBERT, a distilled version of BERT: smaller, faster, cheaper and lighter. arXiv preprint arXiv:1910.01108.
 
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