Update README.md

Author: Quanoom

README.md

@@ -1,2 +1,13 @@
-# Software_PWM_Generator
-This implementation is useful in cases where dedicated PWM hardware is unavailable.
+### Overview
+The Software_PWM_Generator project is designed to generate PWM signals with varying duty cycles using a software approach on the PIC18F452 microcontroller. 
+The program utilizes Timer0 for precise timing and an external interrupt to cycle through different duty cycles.
+This is particularly useful for applications where hardware PWM modules are either unavailable or insufficient.
+
+### Features
+Generates PWM signals with the following duty cycles: 5%, 25%, 50%, 75%, and 90%.
+Allows dynamic switching between duty cycles using an external button.
+Uses Timer0 for precise control over the PWM signal.
+Employs an external interrupt (INT0) to trigger duty cycle changes.
+
+
+Tested and verified using proteus simulation and gives same result as pwm hardware generator.