chore: added the documentation for flashing firmware from windows. (#83)

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>
Co-authored-by: Dien-Nhung Nguyen <[email protected]>

Author: 3 people

README.md

@@ -4,6 +4,7 @@ Hardware details and information to build an open firmware for Bluetooth LED bad
 
 ## Installation
 
+### Unix
 Install [wchisp](https://github.com/ch32-rs/wchisp?tab=readme-ov-file#installing).
 
 Download prebuilt binaries from [release](https://github.com/fossasia/badgemagic-firmware/releases) or [the latest development builds](https://github.com/fossasia/badgemagic-firmware/tree/bin).
@@ -15,6 +16,14 @@ USB port) while plugging in the USB to enter the bootloader. Then run:
 wchisp flash badgemagic-ch582.bin
 ```
 
+### Windows
+Install and run [wchisp studio](https://www.wch-ic.com/downloads/WCHISPTool_Setup_exe.html)
+Connect the badge via USB and enter bootloader mode.
+
+The device will automatically appear in the UI.
+
+Select the `badgemagic-ch582.bin` file and click 'Download'.
+
 Where badgemagic-ch582.bin is the binary downloaded above, the .elf file also
 works.