Technical requirements for windows to run local mode

[Duy Nguyen]

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

[Adobe I/O JIRA Bot]

JIRA issue created: https://jira.corp.adobe.com/browse/AIOE-357