update qdrant docs to reflect the proper way to initialize Qdrant() constructor (#4596)
# update qdrant docs to reflect the proper way to initialize Qdrant()
constructor
The [Qdrant
docs](https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/qdrant.html)
still contain an old reference for passing an `embedding_function` into
the constructor. This is no longer supported.
This PR updates the docs to reflect the proper way to initialize
`Qdrant()`
Old:
New:
langchain
4e56d311 - update qdrant docs to reflect the proper way to initialize Qdrant() constructor (#4596)
