[Merged by Bors] - Reference to "Connect to Trino" guide

[sbernauer]

Description

Fixes https://github.com/stackabletech/trino-operator/issues/321

Review Checklist

• [ ] Code contains useful comments
• [ ] (Integration-)Test cases added (or not applicable)
• [ ] Documentation added (or not applicable)
• [ ] Changelog updated (or not applicable)
• [ ] Cargo.toml only contains references to git tags (not specific commits or branches)

Once the review is done, comment bors r+ (or bors merge) to merge. Further information

[sbernauer]

bors r+

[bors[bot]]

Pull request successfully merged into main.

Build succeeded:

• Run Rustfmt