Update Ubuntu distributions

[koenvervloesem]

This updates the entries for some Ubuntu distributions:

• Snappy Ubuntu Core is now called Ubuntu Core
• Ubuntu Desktop is added
• Ubuntu Server has a new URL

However, I have some questions about the badges:

• I couldn't find a badge for the Raspberry Pi 4 (Ubuntu Desktop only supports the Raspberry Pi 4), so I added this requirement in the description.
• I couldn't find a badge for the Zero 2 W. Ubuntu Server and Core support this model too, how should I add this?
• I noticed Ubuntu Server lists badges for 2+ and 3, while Ubuntu MATE lists 2+. Both distributions support the Raspberry Pi 2, 3 and 4. What does 2+ mean? Raspberry Pi 2 and above? Then 2+ is enough for Ubuntu Server and Ubuntu MATE and 3 should be removed from Ubuntu Server.

• [X] I have read and understood the contribution guidelines.
• [X] This pull request has a descriptive title. (For example: Add Raspbian)
• The topic I added
  • [X] includes a valid (https) link,
  • [X] includes a concise and on-topic description,
  • [X] mentions if there is only support some devices,
  • [X] is not a duplicate,
  • [X] has been in the correct alphabetical order for its section,
  • [X] is in the form of Named Link - Description, separated by commas.
  • [X] ends with a dot.

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Name	Status	Preview	Updated
awesome-raspberry-pi	❌ Failed (Inspect)		Aug 17, 2022 at 9:44AM (UTC)

[thibmaek]

Hey thanks for taking the time to correct this.

I couldn't find a badge for the Zero 2 W. Ubuntu Server and Core support this model too, how should I add this?

Just add it in the description like you did for the RPI 4

What does 2+ mean? Raspberry Pi 2 and above?

Yup, 2 and above, feel free to correct it.

[koenvervloesem]

Fixed!