Clarify possible diabdat.mpq location for macOS

Resolves #473

README.md

@@ -10,7 +10,11 @@ Nightly builds | Platform
 ![Discord Channel](https://avatars3.githubusercontent.com/u/1965106?s=16&v=4) [Discord Chat Channel](https://discord.gg/aQBQdDe)
 
 # How To Play:
- - Copy diabdat.mpq from your CD, or GoG install folder, to the DevilutionX install folder ; Make sure it is all lowercase.
+ - Copy diabdat.mpq from your CD, or GoG install folder, to the DevilutionX install folder or data folder; make sure it is all lowercase. The DeviliutionX install is the one that contains the DevilutionX executable, the data folder path differ depending on OS version and and security setting, but will normally be as following:
+    - macOS `~/Library/Application Support/diasurgical/devilution`
+    - Linux `~/.local/share/diasurgical/devilution/`
+    - Windows `C:\Users[username]\AppData\Roaming\diasurgical\devilution`
+    - These paths may differ depending on OS version and security setting, so the most reliable recommended location is the directory that contains the DevilutionX executable.
  - [Download DevilutionX](https://github.com/diasurgical/devilutionX/releases), or build from source
  - Install [SDL2](https://www.libsdl.org/download-2.0.php) (including [SDL2_mixer](https://www.libsdl.org/projects/SDL_mixer/) and [SDL2_ttf](https://www.libsdl.org/projects/SDL_ttf/))
  - Run `./devilutionx`
@@ -137,7 +141,7 @@ Make sure to install the `C++ CMake tools for Windows` component for Visual Stud
 
 <details><summary>Nintendo Switch</summary>
 Run:
-	
+
 ```
 Packaging/switch/build.sh
 ```