Update the meetups groups list

[LottePitcher]

I assume the reason why the new 'umbraco-virtual' meetup isn't appearing on the Our home page is because it is missing from this file.

Thought it would be community minded to see who else was missing, and have a quick review of the ones already there:

• Umbraco DK meetup appears to have changed its name, so fixed that
• Denver and RheinMein were in there twice, so removed the duplicates
• meet-umbraco-the-umbraco-meetup (?!) no longer exists so removed

All the following are groups in the Umbraco Pro account but weren't on the list, so I've added them:

• Kochi-umbraco-meetup-group
• North-carolina-umbraco-meetup
• umbracalong
• umbraco-ahmedabad
• umbraco-ireland-meetup
• umbracymru
• wessex-umbraco
• umbraco-virtual

[nul800sebastiaan]

🎉 Thank you @LottePitcher !! 💪