update readme

README.md

@@ -1,3 +1,18 @@
 ---
 license: afl-3.0
 ---
+```
+from transformers import AutoModelForSequenceClassification, AutoTokenizer
+
+# load model
+model = AutoModelForSequenceClassification.from_pretrained('dmrau/bow-bert')
+# load tokenizer
+tokenizer = AutoTokenizer.from_pretrained('bert-base-uncased')
+
+# tokenize query and passage and concatenate them
+inp = tokenizer(['this is a query'], ['this is a passage'], return_tensors='pt')
+
+# get estimated score
+print('score', model(**inp).logits[:, 1])
+
+```