Clarify licensing

Author: NegaNote

README.md

@@ -1,2 +1,8 @@
 # Moni Labs
 Core mod for the Monifactory modpack.
+
+## License
+
+All code is under LGPL3. Some parts were directly lifted from GregTech Modern.
+
+Assets are licensed under MIT. The texture for the sterile cleaning maintenance hatch was edited from GregTech Modern's Cleaning maintenance hatch and the colors from the Sterilizing Filter Casing.