[ARROW-3066] [Wiki] Add "How to contribute" to developer wiki

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.13.0
• Component/s: Wiki
• External issue URL: https://github.com/apache/arrow/issues/15774
• Assignee: Wes McKinney
• Reporter: okkez
• Created: 17/Aug/18 07:54
• Updated: 11/Jan/23 07:25
• Resolved: 31/Mar/19 04:15

Description

The website describes:

> Interested in contributing? Join the mailing list or check out the developer wiki.

But I could not find "How to contribute" on the Wiki.

Though I can find it in the repository:

• https://github.com/apache/arrow#how-to-contribute
• https://github.com/apache/arrow/blob/master/.github/CONTRIBUTING.md#how-to-contribute-patches

We can add the contents to find "How to contribute" more easily.
Or, we can unify duplicated contents to the Wiki.