Update Contact section in README

[TanguyJeanneau]

Update Contact section in README

PR description

We recently received contacts directly to the contributor's GH or e-mail. We want a soft redirect of incoming demands to [email protected] while leaving other options open - the README is now modified to nudge incoming contacts to this email

Type

• Feature
• Refactoring
• Bugfix
• DevOps
• Testing

Checklist

• I've made sure that my code works as expected by writing unit tests.
• I've checked if my code doesn't generate warnings or errors.
• I've performed a self-review of my code.
• I've made sure that my code follows the style guidelines of the project.
• I've commented hard-to-understand parts of my code.
• I've made appropriate changes in the documentation.

[ycbiometrics]

Thanks for the change!