Update README.md

Author: Matt-Hurd

README.md

@@ -19,6 +19,10 @@ If you are asked to overwrite any files, accept. This mod replaces (and function
 
 3. If you have installed an older version of the SDK, delete the old files. This includes `Win32\Plugins\PythonSDK.dll`
 
+## Installing Mods
+
+Mods live in the `Borderlands 2\Binaries\Win32\Mods` folder. Each mod should be place in it's own subfolder, and contain an `__init__.py`. Example: `Win32\Mods\SkillRandomizer\__init__.py`   
+
 ### Linux (SteamPlay/Proton and Wine)
 
 PythonSDK does not yet work natively on Linux, but it seems to work well under SteamPlay/Proton and Wine.  To load properly, though, Wine needs to be told to allow `ddraw.dll` overrides.  Additionally, the latest SDK release (as of February 29, 2020) wants the main executable name to be `Borderlands2.exe`, so the common workaround of a `Launcher.exe` symlink/copy won't do the trick.  Instead, set the game's launch options (via `Properties -> General`) to: