[ARROW-10383] [Doc] Fix typos and spelling

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Documentation
• Labels: pull-request-available
• Assignee: Kazuaki Ishizaki
• Reporter: Kazuaki Ishizaki
• Created: 24/Oct/20 16:42
• Updated: 24/Oct/20 18:48
• Resolved: 24/Oct/20 18:48

Description

Fix typo under docs directory

Issue Links

• links to: GitHub Pull Request #8519