Update README.md

README.md

@@ -204,6 +204,12 @@ print(similarity)
 # tensor(0.9118)
 ```
 
+For truncation, you can trucate before applying normalization
+```diff
++ embeddings = embeddings[:, :matryoshka_dim]
+embeddings = F.normalize(embeddings, p=2, dim=1)
+```
+
 ### SentenceTransformers
 
 With SentenceTransformers, you can specify the `prompt_name` as either `"query"` or `"passage"`, and the task instruction will be included automatically.