Doc/add regressor comparison tuto

[AmT42]

adapte the regressor tutorial for concrete 1.0 and make the PR on right branch and repo

[aquint-zama]

relates to zama-ai/bounty-program#14

[jfrery]

Hello @AmT42 and thanks again for your work! We would like to proceed to the merge. Could you rebase on the https://github.com/zama-ai/concrete-ml/tree/tutorials branch please?

[aquint-zama]

@cla-bot check

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: Roman.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[AmT42]

hello @jfrery my branch is up to date with the tutorials branch and ready for merging.

[jfrery]

Thanks again for your work here. We are merging your commit with the tutorial branch and we will include it in the next release of CML.

[aquint-zama]

close zama-ai/bounty-program#41