Re-publish PyPI package with updated READMe

[raprasad]

• The README on PyPI has a broken image, incorrect contact email, etc.
  • https://pypi.org/project/opendp-smartnoise-core/
• Needs to be cleaned up.

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• Related to deprecation of opendp.io emails
  • https://github.com/opendp/opendp-documentation/issues/3

[raprasad]

close for #68