how to release

generate pio_pkg_list.txt
1. set PYTHONIOENCODING=utf-8
2. %USERPROFILE%\.platformio\penv\Scripts\pio pkg list > pio_pkg_list.txt
update USB3SUN_VERSION in platformio.ini
update README.md
commit and push
git tag -am [tag] [tag]
git push --tags
create release on github