Fix instance country in readme

https://whoogle.lunar.icu is actually hosted in Germany

README.md

@@ -521,7 +521,7 @@ A lot of the app currently piggybacks on Google's existing support for fetching
 | [https://whoogle.dcs0.hu](https://whoogle.dcs0.hu) | 🇭🇺 HU | Multi-choice | ✅ |
 | [https://whoogle.esmailelbob.xyz](https://whoogle.esmailelbob.xyz) | 🇨🇦 CA | Multi-choice | |
 | [https://gowogle.voring.me](https://gowogle.voring.me) | 🇺🇸 US | Multi-choice | |
-| [https://whoogle.lunar.icu](https://whoogle.lunar.icu) | 🇺🇸 US | Multi-choice | ✅ |
+| [https://whoogle.lunar.icu](https://whoogle.lunar.icu) | 🇩🇪 DE | Multi-choice | ✅ |