Add Vector Creation Demo

README.md

@@ -73,6 +73,18 @@ if __name__ == "__main__":
         indexer.index(name=index_name, collection=documents)
 ```
 
+### Creating Vectors
+
+
+```python
+from colbert.modeling.checkpoint import Checkpoint
+ckpt = Checkpoint("jinaai/jina-colbert-v1-en", colbert_config=ColBERTConfig(root="experiments"))
+queries = ckpt.queryFromText(["What does ColBERT do?", "This is a search query?"], bsize=16)
+document_vectors = ckpt.docFromText(documents, bsize=32)[0]
+```
+
+Complete working Colab Notebook is [here](https://colab.research.google.com/drive/1-5WGEYPSBNBg-Z0bGFysyvckFuM8imrg)
+
 ### Searching
 
 ```python