Update README.md

README.md

@@ -26,6 +26,10 @@ datasets:
 |      | 89.4   |
 
 ## How to use
+Workflow of a relation extraction model:
+1. Input --> NER model --> Entities
+2. Input sentence + Entity 1 + Entity 2 --> Relation Classification Model --> Relation Type
+
 ```python
 >>> from transformers import pipeline, AutoModelForTokenClassification, AutoTokenizer, AuotoModelForSequenceClassification