Update readme.md

adrian2793 · web-flow · commit 1223eb22e6f0 · 2023-12-12T14:52:22.000+01:00
Signed-off-by: Adrian &lt;76214766+adrian2793@users.noreply.github.com&gt;
diff --git a/readme.md b/readme.md
@@ -26,6 +26,11 @@ SerialMonitor serial;
 ```
 Create a new `SerialMonitor` Object
 
+```ino
+Serial.begin(9600);
+```
+Setup the serial monitor
+
 ### Use
 
 ```ino
