Make sure the setup.py script now works, build the source package and check that it contains README.md:
`pip install .`
Build the source package and check that it contains README.md:```
`cd electrum
python setup.py --version
contrib/build-linux/srcdist-docker/build.sh && tar tvf dist/ElectrumABC-5.2.5.tar.gz | grep README.md`md
```