Missing https://examples.citusdata.com/mt_ref_arch/companies.csv in tutorial

In [Add application data](https://pg-auto-failover.readthedocs.io/en/main/tutorial.html#add-application-data) section, the following command is provided:

```bash
\copy companies from program 'curl -o- https://examples.citusdata.com/mt_ref_arch/companies.csv' with csv
```

However, https://examples.citusdata.com/mt_ref_arch/companies.csv returns a 301 redirect to `https://www.citusdata.com/download/` , and the CSV file cannot be retrieved.

Could you please clarify the current location of the companies.csv file, or consider adding the correct data source directly to this repository?