[ARROW-14339] [Docs] Add canonical url to the pkgdown (R) docs

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: 8.0.0
• Component/s: Documentation, R
• External issue URL: https://github.com/apache/arrow/issues/29909
• Assignee: Nicola Crane
• Reporter: Nicola Crane
• Created: 15/Oct/21 08:57
• Updated: 11/Jan/23 08:39
• Resolved: 07/Apr/22 15:50

Description

A canonical URL is the URL of the page that Google thinks is most representative from a set of duplicate pages on your site. More info can be found here: https://www.authoritylabs.com/solving-canonical-problems/