Add README.MD

Author: mitchej123

README.MD

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+# JarJar
+
+A RFB Plugin to improve FML for 1.7.10.
+* Adds Nested Jar (Jar-in-Jar) support
+* Picks the latest version of a coremod/mod to load if multiple are found
+* Adds a ParallelModDiscoverer to speed up mod loading
+* Updates ASMDataTable to also capture interfaces like later versions of FML/Forge do
+* Includes various speedups from various sources, including CoreTweaks and newer versions of FML/Forge
+
+
+Inspired by and/or code adapted from (see LICENSE for more details):
+* ForgeModLoader
+* Fabric-loader
+* FancyModLoader
+* CoreTweaks
+
+
+## Notes:
+* Minecraft 1.7.10 only.
+* Requires [RetroFuturaBootstrap](https://github.com/GTNewHorizons/RetroFuturaBootstrap)
+* Has only been tested with the mods included in the GT New Horizons modpack.