Added 0.2.0 content to the readme

Author: Flaxbeard

README.md

@@ -13,3 +13,4 @@ Current content includes:
  - Transmutative wand core, a wand core that tries to even out collected vis.
  - The Think Tank, a monstrosity that converts books and enchanted books into the ever-elusive knowledge fragments.
  - Work in progress Necromancy focus, allowing you to raise the dead.
+ - The Everfull Urn, a remake of the Thaumcraft 2 item that acts as an infinite water supply, and more!