v1.0.0 for STM32F/L/H/G/WB/MP1 Slow PWM

### Initial Releases v1.0.0

1. Initial coding to support **STM32F/L/H/G/WB/MP1 boards** such as NUCLEO_H743ZI2, NUCLEO_L552ZE_Q, NUCLEO_F767ZI, BLUEPILL_F103CB, etc., using [`Arduino Core for STM32`](https://github.com/stm32duino/Arduino_Core_STM32)
2. The hybrid ISR-based PWM channels can generate from very low (much less than 1Hz) to highest PWM frequencies up to 1000Hz with acceptable accuracy.

Author: khoih-prog

README.md

@@ -142,7 +142,7 @@ Another way to install is to:
 
 1. Install [VS Code](https://code.visualstudio.com/)
 2. Install [PlatformIO](https://platformio.org/platformio-ide)
-3. Install [**STM32_Slow_PWM** library](https://platformio.org/lib/show/xxxxx/STM32_Slow_PWM) by using [Library Manager](https://platformio.org/lib/show/xxxxx/STM32_Slow_PWM/installation). Search for **STM32_Slow_PWM** in [Platform.io Author's Libraries](https://platformio.org/lib/search?query=author:%22Khoi%20Hoang%22)
+3. Install [**STM32_Slow_PWM** library](https://platformio.org/lib/show/12901/STM32_Slow_PWM) by using [Library Manager](https://platformio.org/lib/show/12901/STM32_Slow_PWM/installation). Search for **STM32_Slow_PWM** in [Platform.io Author's Libraries](https://platformio.org/lib/search?query=author:%22Khoi%20Hoang%22)
 4. Use included [platformio.ini](platformio/platformio.ini) file from examples to ensure that all dependent libraries will installed automatically. Please visit documentation for the other options and examples at [Project Configuration File](https://docs.platformio.org/page/projectconf.html)
 
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