Update the example podcasts OPML

[thp]

This hasn't been updated in ~ 8 years.

Removed entries:

• Live Laugh Drink Beer (site doesn't exist anymore)
• FM4 Soundpark (feed doesn't exist anymore)
• The Verge on YouTube (outdated YT link)
• Vimeo Staff Picks (feed and videos still work, but it doesn't have any text description, making it look weird)
• gu-mix on Soundcloud (Soundcloud support is broken atm)

Added entires:

• Technology Connections (new YouTube example)
• Back to Work (talk show)

Also formatted the OPML in a nicer way so it's easier to read.

This should make the first-time "select all example podcasts" work nicely again.

[elelay]

Merged, thanks :-)