[#53420683] Updates the "Download group events to your personal calendar (.ICS file)" page on the knowledge base.
[#53420683] Replaces <b> tags with <strong> tags.
[#53420683] Updates the "Download group events for spreadsheet display (.CSV file)" page on the knowledge base.
Merge pull request #180 from jdarling91/53420683-update_kb-download_group_events_personal_calendar_ics

[#53420683] Updates the "Download group events to your personal calendar (.ICS file)" page on the knowledge base.