docs: Update langchain-astradb README with AstraDBStore (#17864)

docs/docs/integrations/providers/astradb.mdx

@@ -105,7 +105,7 @@ Learn more in the [example notebook](/docs/integrations/retrievers/self_query/as
 ## Store
 
 ```python
-from langchain_community.storage import AstraDBStore
+from langchain_astradb import AstraDBStore
 store = AstraDBStore(
     collection_name="my_kv_store",
     api_endpoint="...",
@@ -118,7 +118,7 @@ Learn more in the [example notebook](/docs/integrations/stores/astradb#astradbst
 ## Byte Store
 
 ```python
-from langchain_community.storage import AstraDBByteStore
+from langchain_astradb import AstraDBByteStore
 store = AstraDBByteStore(
     collection_name="my_kv_store",
     api_endpoint="...",

libs/partners/astradb/README.md

@@ -30,6 +30,28 @@ my_store = AstraDBVectorStore(
 )
 ```
 
+### Store
+
+```python
+from langchain_astradb import AstraDBStore
+store = AstraDBStore(
+    collection_name="my_kv_store",
+    api_endpoint="...",
+    token="..."
+)
+```
+
+### Byte Store
+
+```python
+from langchain_astradb import AstraDBByteStore
+store = AstraDBByteStore(
+    collection_name="my_kv_store",
+    api_endpoint="...",
+    token="..."
+)
+```
+
 ## Reference
 
 See the [LangChain docs page](https://python.langchain.com/docs/integrations/providers/astradb) for a more detailed listing.