[ARROW-17512] [Doc] Updates to crossbow documentation for clarity

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 10.0.0
• Component/s: Documentation
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/32771
• Assignee: Fiona La
• Reporter: Fiona La
• Created: 24/Aug/22 15:42
• Updated: 11/Jan/23 11:51
• Resolved: 29/Sep/22 07:52

Description

While setting up a queue repository for testing changes to crossbow, we noticed some updates that can be made to help future developers set up their environment. 

They include:

1. Clarify Travis CI auto-cancellation default behavior
2. Fixing broken links
3. Typos

Issue Links

• links to: GitHub Pull Request #13993