[ARROW-10889] [Rust] Document our approach to unsafe code in README

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18413
• Assignee: Jorge Leitão
• Reporter: Andy Grove
• Created: 12/Dec/20 19:06
• Updated: 11/Jan/23 08:16
• Resolved: 16/Dec/20 21:23

Description

It would be helpful to document the project's stance on the use of unsafe code in a prominent location such as in the top-level README so that we can refer people to this when questions are asked about this.

Issue Links

• links to: GitHub Pull Request #8901