[MRG] Release 0.8.1.0 and correct doc build by rflamary · Pull Request #332 · PythonOT/POT

Types of changes

This changed version number to 0.8.1.0 and hopefully will correct the doc build on master

Motivation and context / Related issue

How has this been tested (if it applies)

PR checklist

  • I have read the CONTRIBUTING document.
  • The documentation is up-to-date with the changes I made (check build artifacts).
  • All tests passed, and additional code has been covered with new tests.
  • I have added the PR and Issue fix to the RELEASES.md file.