Add link to meeting replays on events page

[afewell]

User Story: Users should easily be able to find replays of recorded events

Proposal: Add link to ModernApps Learning Youtube Page to the event homepage.

Discussion: Links to event replays should also have a link to the replay location in the event body, however this method alone is insufficient as it would require a member to look through lists of past events, and simply going to the youtube page may be an easier method to find the replay. An additional complication with reviewing past event entries is that currently, the events view has only basic filtering configuration that does not provide an easy way to navigate to events that occurred in the past. While creating more advanced filtering and view options is a long term desire it will take time to implement. Including the link on the events page is a simple solution to help users find meeting replays that can be easily implemented now and continue to add value even after we introduce more advance filtering and views to allow users to browse past events, where more specific links to the event replay should be posted within individual event entries.