Update README.md

README.md

@@ -50,7 +50,7 @@ See https://www.martin-riedl.de/2018/08/24/using-ffmpeg-as-a-hls-streaming-serve
 
 To run this yourself, get this source code. As the project currently exists you might need to change some things:
 
-* If you're on Windows `stream.sh` will be wrong for you and so will all the fonts in `app.py`.
+* If you're on Windows `stream.sh` will be wrong for you and so will all the fonts in `app.py`. `stream.sh` uses `$$` to get its process ID, you'll have to use the Windows equivalent.
 * If you're on macOS `stream.sh` might need to be changed a bit and you might not have the fonts in `app.py`.
 * If you're on Linux `stream.sh` will probably be alright but you might not have all the fonts in `app.py`.