v1.0.0 for megaAVR Slow PWM

### Initial Releases v1.0.0

1. Initial coding to support **Arduino megaAVR boards, such as UNO WiFi Rev2, AVR_Nano_Every, etc.**, etc. using [`Arduino megaAVR core`](https://github.com/arduino/ArduinoCore-megaavr)

2. The hybrid ISR-based PWM channels can generate from very low (much less than 1Hz) to highest PWM frequencies up to 500Hz with acceptable accuracy.

library.properties

@@ -4,7 +4,7 @@ author=Khoi Hoang
 maintainer=Khoi Hoang <[email protected]>
 sentence=This library enables you to use ISR-based PWM channels on an Arduino megaAVR board, such as UNO WiFi Rev2, AVR_Nano_Every, etc., to create and output PWM any GPIO pin.
 paragraph=It now supports 16 ISR-based PWM channels, while consuming only 1 Hardware Timer. PWM channel interval can be very long (ulong microsecs / millisecs). The most important feature is they're ISR-based PWM channels, supporting lower PWM frequencies with suitable accuracy. Their executions are not blocked by bad-behaving functions or tasks. This important feature is absolutely necessary for mission-critical tasks. These ISR-based PWMs, still work even if other software functions are blocking. Moreover, they are much more precise (certainly depending on clock frequency accuracy) than other software-based PWM using millis() or micros(). That's necessary if you need to control devices requiring high precision
-category=Timing,Control,Device,Time,Timer,Interrupt,megaavr,atmega4809
+category=Device Control
 url=https://github.com/khoih-prog/megaAVR_Slow_PWM
 architectures=megaavr
 repository=https://github.com/khoih-prog/megaAVR_Slow_PWM