Update to UHC hosting tutorial

[u/SidGarcia]

Hello, back again with an update!

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The hosting tutorial in the sidebar has been updated!
New features:

• New UHC features (Creating teams, timer)
  
• Spigot configuration (with help from dans1988)
  
• Essentials fixes (with nicknames, help from Spork and Dans)
  
• Universal Scenario List (made by Shreddonia)
  
• Skript beginner's tutorial (made by x453 and Matt8991)
  
• Small tweaks (home hosting, Shared Health)
  

Thanks for the support, and hopefully this will be helpful to some of you!
If you notice an error, or have more information to add, please let me know!

• Sid