updating readme with link to paper

README.md

@@ -39,7 +39,7 @@ I-ORG |Organisation
 B-LOC |Beginning of a location right after another location
 I-LOC |Location
 ## Training procedure
-This model was trained on a single NVIDIA V100 GPU with recommended hyperparameters from the [original MasakhaNER paper]() which trained & evaluated the model on MasakhaNER corpus. 
+This model was trained on a single NVIDIA V100 GPU with recommended hyperparameters from the [original MasakhaNER paper](https://arxiv.org/abs/2103.11811) which trained & evaluated the model on MasakhaNER corpus. 
 ## Eval results on Test set (F-score)
 language|F1-score
 -|-