replaced max with avg in comment

Looks like a typo, this does not look like max pooling.

README.md

@@ -64,7 +64,7 @@ encoded_input = tokenizer(sentences, padding=True, truncation=True, return_tenso
 with torch.no_grad():
     model_output = model(**encoded_input)
 
-# Perform pooling. In this case, max pooling.
+# Perform pooling. In this case, average pooling
 sentence_embeddings = mean_pooling(model_output, encoded_input['attention_mask'])
 
 print("Sentence embeddings:")