flags and arguments

API/README.md

@@ -76,3 +76,13 @@ The script will host a `waitress` webserver on port `8080` of the machine it's r
   - y: int
   - w: int
   - h: int
+
+## Flags and Arguments
+
+You may need to specify all kinds of different flags or arguments to run the matrix correctly. For usage, please refer to any of the scripts, followed by the flag `--help`.
+
+### Example:
+
+```bash
+sudo python main.py --led-rows=64 --led-cols=64 --led-slowdown-gpio=5 --led-parallel=3 --led-chain=3 --led-gpio-mapping=regular
+```