Update README.md

README.md

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 # PhysicsBooster
-A MelonLoader mod that allows you to customize the physics timestep in any supported game.
+A MelonLoader mod that allows you to customize the physics timestep in any supported game. 
+
+Primarially designed for [Until You Fall](https://store.steampowered.com/app/858260/Until_You_Fall/) to fix the jittery hand movemnet on Index at 144hz.
+
+
+Requires MelonLoader v3.0 or higher.
+
+## Installation
+
+Install [MelonLoader v3.0](https://melonwiki.xyz/#/README)
+(when installing enable alpha versions in the settings)
+
+Run the game once to generate needed files.
+
+Download the latest PhysicsBooster.dll and drop it into Mods/
+
+Run the game, and enjoy!
+
+## Customizing
+
+Open UserData/MelonPreferences.cfg.
+
+Find [PhysicsBooster] and set the desired physics framerate to whatever you want (default 144 for Index).
+