[ARROW-2557] [Rust] Add badge for code coverage in README

• Type: Test
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Component/s: Rust
• Labels: pull-request-available
• Assignee: Chao Sun
• Reporter: Chao Sun
• Created: 09/May/18 06:09
• Updated: 10/May/18 09:32
• Resolved: 10/May/18 09:32

Description

Follow up on ARROW-2477, It may be good to add a badge in README to report the current code coverage.

Issue Links

• links to: GitHub Pull Request #2014