[3.4] Explain how to configure the Git repo to build Docker image on Windows.

[devaskim]

The root cause is file line ending. Windows uses CRLF, Unix - LF. My Git client automatically switches line endings while cloning or committing sources, but to locally build Docker image some sources need to have LF ending otherwise TB will not be able to start.

And please don't leave your Dart client PR and issues alone)))

[CLAassistant]

All committers have signed the CLA.

[ashvayka]

Thank you!