Add example in how to use this with a https clickhouse URL

[joshstevens19]

It seems to need a few moving parts to connect this lib with an HTTPS clickhouse URL and probably a lot of people would like to see an example of which they can copy in and replace their parameters without having to find it out based on other peoples code. Would be pretty useful example IMHO

[slvrtrn]

@joshstevens19, do you need certificates or just an example of using it with an HTTPS URL with enabled TLS feature?

If it is just HTTPS, you could use this example: https://github.com/ClickHouse/clickhouse-rs/blob/master/examples/clickhouse_cloud.rs, which should be sufficient, as CH Cloud is HTTPS.

[slvrtrn]

It is now also mentioned in the website docs: https://clickhouse.com/docs/en/integrations/rust#https-or-clickhouse-cloud-connection

Feel free to re-open if you still have questions.