docs(wokwi-servo): mention range and add diagrams for servo angles (#251)

Ref #244

Author: krisjdev

docs/parts/wokwi-servo.md

@@ -3,10 +3,18 @@ title: wokwi-servo Reference
 sidebar_label: wokwi-servo
 ---
 
-A standard Micro Servo Motor
+A standard Micro Servo Motor.
 
 <wokwi-servo />
 
+## Range of motion
+
+The servo is able to sweep from 0 degrees to 180 degrees, with hard stops at both ends.
+
+| <wokwi-servo /> | <wokwi-servo angle="90" /> | <wokwi-servo angle="180" /> |
+| :-------------: | :------------------------: | :-------------------------: |
+| 0 degrees       | 90 degrees                 | 180 degrees                 |
+
 ## Pin names
 
 | Name | Description           |