Move README.md and LICENSES_SOURCES in package (#8297)
Move README.md and LICENSES_SOURCES in package (#8297)

In addition to `LICENSE`, move the files `README.md` and
`LICENSES_SOURCES` to the top directory in `spacy package` if present in
the model directory.
honnibal/spaCy,explosion/spaCy,honnibal/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,honnibal/spaCy,explosion/spaCy