Wrong example code in Python integration section

[wh201906]

https://clickhouse.com/docs/integrations/python#insertcontexts

clickhouse-docs/docs/integrations/language-clients/python/index.md

Lines 969 to 970 in 80bea48

	test_data = [[1, 'v1', 'v2'], [2, 'v3', 'v4']]
	ic = test_client.create_insert_context(table='test_table', data='test_data')

I think the 'test_data' at Line 970 should be test_data.