v1.5.0

### Releases v1.5.0

1. Fix bug. 
2. Optimize and sync with [**Blynk_Async_WM library v1.5.0**](https://github.com/khoih-prog/Blynk_Async_WM)

Author: khoih-prog

README.md

@@ -365,7 +365,31 @@ Thanks to [Thor Johnson](https://github.com/thorathome) to test, suggest and enc
 ## HOWTO Install esp32 core for ESP32-S2 (Saola, AI-Thinker ESP-12K) and ESP32-C3 boards into Arduino IDE
 
 
-These are instructions demonstrating the steps to install esp32-s2 core on Ubuntu machines. For Windows or other OS'es, just follow the the similar principles and steps.
+These are instructions demonstrating the steps to install esp32-s2/c3 core on Ubuntu machines. For Windows or other OS'es, just follow the the similar principles and steps.
+
+* Windows 10, follows these steps in [Steps to install Arduino ESP32 support on Windows](https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/windows.md) 
+
+* Mac OS, follows these steps in [Installation instructions for Mac OS](https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/mac.md)
+
+* Fedora, follows these steps in [Installation instructions for Fedora](https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/fedora.md)
+
+* openSUSE, follows these steps in [Installation instructions for openSUSE](https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/opensuse.md)
+
+* You can also try to add [package_esp32_dev_index.json](https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json) into Arduino IDE `File - Preferences - Additional Boards Manager URLs` 
+
+
+```
+https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json
+```
+
+and have Board Manager auto-install the **development** esp32 core. For example : esp32 core `v2.0.0-alpha1`
+
+
+---
+
+If you're already successful in testing the core, after installing by using the above procedures, you don't need to follows the hereafter manual steps.
+
+---
 
 Assuming you already installed Arduino IDE ESP32 core and the installed directory is