community[patch]: docstrings update (#20301)

Added missed docstrings. Format docstings to the consistent form.

libs/community/langchain_community/vectorstores/sqlitevss.py

@@ -24,7 +24,8 @@ logger = logging.getLogger(__name__)
 
 
 class SQLiteVSS(VectorStore):
-    """Wrapper around SQLite with vss extension as a vector database.
+    """SQLite with VSS extension as a vector database.
+
     To use, you should have the ``sqlite-vss`` python package installed.
     Example:
         .. code-block:: python