Technical requirements for windows to run local mode

To be updated in https://github.com/AdobeDocs/project-firefly/blob/master/getting_started/setup.md.

For windows user, add section that if they want to use local debugger. They would need to add docker executable path to PATH / CLASSPATH environment variable.
```
C:\Program Files\Docker\Docker\resources\bin\docker.exe
```
or
```
C:\Program Files\Docker\Docker\resources\docker.exe
```

Open getting_started/setup.md and review the existing local debugger setup instructions. Add a Windows-specific section covering the Docker executable path requirement and the paths listed in the issue. Done means Windows users can find the local-mode requirement and both Docker path examples in the setup guide.

Written by the indexing model from the issue text.