[Windows, WSL, Tip] How to read only File system fix

[Ref] https://github.com/microsoft/WSL/issues/6220

1. open WSL and run:

sudo e2fsck /dev/sdb -y
sudo e2fsck /dev/sdb -p

2. open PowerShell and run:
   wsl --shutdown
3. open WSL, repeat if steps 1,2 if the issue persists