Updated the doc root file to have the README content

README.md

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-
 # BSIPA [![Build status](https://ci.appveyor.com/api/projects/status/1ruhnnfeudrrd097?svg=true)](https://ci.appveyor.com/project/nike4613/beatsaber-ipa-reloaded-9smsb)
 
 Beat Saber IPA - The mod injector tailored for Beat Saber

docs/index.md

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-# Beat Saber IPA Reloaded
+# Beat Saber IPA Reloaded [![Build status](https://ci.appveyor.com/api/projects/status/1ruhnnfeudrrd097?svg=true)](https://ci.appveyor.com/project/nike4613/beatsaber-ipa-reloaded-9smsb)
 
-The game-agnostic mod injector for Unity, that happens to have been written for Beat Saber!
+Beat Saber IPA - The mod injector tailored for Beat Saber
 
-Take a look at <xref:getting_started> to see how to get going.
+## How To Install
 
-TODO: finish
+1. [Download a release](https://github.com/beat-saber-modding-group/BeatSaber-IPA-Reloaded/releases)
+2. Extract the contents into the game folder
+3. Run **IPA.exe**
+4. Start the game as usual
+
+A console window should open before the game starts if the installation was successful.
+
+To disable this console window, pass `--no-console` to the game.
+
+## How To Uninstall
+
+1. Drag & drop the game exe onto **IPA.exe** while holding <kbd>Alt</kbd>
+    - Or run `ipa -rn` in a command window
+
+## Arguments
+
+`IPA.exe file-to-patch [arguments]`
+
+- `--launch`: Launch the game after patching
+- `--revert`: Revert changes made by IPA (= unpatch the game)
+- `--nowait`: Never keep the console open
+- See `-h` or `--help` for more options.
+
+Unconsumed arguments will be passed on to the game in case of `--launch`.
+
+## How To Develop
+
+1. Create a new **Class Library** C# project (.NET 4.6)
+2. Download a release and add **IPA.Loader.dll** to your references
+3. Implement `IBeatSaberPlugin` or `IEnhancedBeatSaberPlugin`
+4. Build the project and copy the DLL into the Plugins folder of the game.
+
+See [Developing](https://github.com/beat-saber-modding-group/BeatSaber-IPA-Reloaded/wiki/Developing) for more information.
+
+## How To Keep The Game Patched
+
+BSIPA will automatically repatch the game when it updates, as long as `winhttp.dll` is present in the install directory.
+
+## Notes for running under Wine
+
+For some reason, by default, Wine does not load DLLs in quite the same way that Windows does, causing issues with the injection. 
+To make the injection work with Wine, `winhttp` has to have a DLL override set to `native,builtin`. This can be set either through 
+Protontricks, or with the following `.reg` file.
+
+```reg
+REGEDIT4
+[HKEY_CURRENT_USER\Software\Wine\DllOverrides]
+"winhttp"="native,builtin"
+```
+
+For Steam there's a per-game Wine prefix under `compatdata`. In this case `SteamLibrary/steamapps/compatdata/620980/pfx/user.reg`.
+Changes to this file will likely be ovewritten when the game updates or if local files are validated through Steam.
+
+## Building
+
+### Prerequisites
+
+- Microsoft Visual Studio 2019 or later (2017 may work, no guarantees)
+- Tools for C/C++ (MSVC) v141
+- .NET 4.6.1 SDK and .NET 4.7.2 SDK
+
+### Building
+
+1. Clone with `git clone https://github.com/beat-saber-modding-group/BeatSaber-IPA-Reloaded.git --recursive`
+2. Create a file, `bsinstalldir.txt` in the solution root. Do NOT create this in Visual Studio; VS adds a BOM at the begginning of the file that the tools used cannot read.
+   It should contain the path to your Beat Saber installation, using forward slashes with a trailing slash. e.g.
+
+   ```
+   C:/Program Files (x86)/Steam/steamapps/common/Beat Saber/
+   ```
+3. Open `BSIPA.sln` in Visual Studio.
+4. Choose the configuration `x64`
+5. Rebuild all.
+
+   When you make a change somewhere in BSIPA itself, right click on `IPA` and click `Build`. This sets up the output in `path/to/solution/IPA/bin/<Configuration>` to be what
+   should be copied to the game directory.
+
+   When making a change to the Mod List, you only need to build the mod list. Install by copying everything in `path/to/solution/BSIPA-ModList/bin/<Configuration>` to your game
+   directory.
+
+When building a Debug build, all referenced assemblies from Beat Saber will be copied from the install directory provided in `bsinstalldir.txt` into `Refs/`. Any new references
+should reference the copy in there. When building for Release, it just uses the files already in `Refs/`