[CosmosDB] Allow creating fixed collections (#13950)

* {Docs} Remove stale reference in README to closed issue about extensions (#12771)

* Making shard key optional, to allow fixed collections

Co-authored-by: Daniel Miller <[email protected]>
Co-authored-by: Azure CLI Team <[email protected]>
Co-authored-by: Meha Kaushik <[email protected]>

Author: 4 people

src/azure-cli/azure/cli/command_modules/cosmosdb/custom.py

@@ -633,7 +633,7 @@ def cli_cosmosdb_mongodb_collection_create(client,
                                            account_name,
                                            database_name,
                                            collection_name,
-                                           shard_key_path,
+                                           shard_key_path=None,
                                            indexes=None,
                                            throughput=None):
     """Create an Azure Cosmos DB MongoDB collection"""