Changes to Annals/1217

• 2021-03-17 19:45:30 UTC (Hans Georg Schaathun): Added links to other years in annals
• 2020-05-09 09:43:12 UTC (georg): Title and categories
• 2020-05-09 09:42:23 UTC (georg): Changed using web interface.
• 2020-03-18 19:44:18 UTC (Hans Georg Schaathun): Split file