add translation badge

is pretti?

README.md

@@ -1,6 +1,6 @@
 # mcMMO
 ## The #1 RPG Mod for Minecraft
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+[![Translation status](https://translate.mcmmo.org/widgets/mcmmo/-/svg-badge.svg)](https://translate.mcmmo.org/engage/mcmmo/?utm_source=widget)
 ## Website
 I'm working on a brand new website for mcMMO