build/README: adding example platformio.ini
@@ -175,14 +175,16 @@ int main() {
### PlatformIO ###
-Mac:
-
- brew install platformio
-
-Linux:
-
- sudo -H python3 -m pip install -U platformio
-
+Install [platformio](https://platformio.org)
+(`brew install platformio` on macOS,
+`sudo -H python3 -m pip install -U platformio` on Linux).
+Add `liquid-dsp` to your `platform.io` list of dependencies:
+
+```ini
+[env:native]
+platform = native
+lib_deps = https://github.com/jgaeddert/liquid-dsp.git#platformio-dev
+```
## Available Modules ##
