Add new contributors

[Xavier Stouder]

@all-contributors please add Xstoudi for code, doc

[Xavier Stouder]

@all-contributors init

[allcontributors]

@Xstoudi

I could not determine your intention.

Basic usage: @all-contributors please add @Someone for code, doc and infra

For other usages see the documentation

[Xavier Stouder]

@all-contributors please add @Xstoudi for code, doc

[allcontributors]

@Xstoudi

I've put up a pull request to add @Xstoudi! 🎉

[Xavier Stouder]

@all-contributors please add @Julien-R44 for question

[allcontributors]

@Xstoudi

I've put up a pull request to add @Julien-R44! 🎉

[Xavier Stouder]

@all-contributors please add @Julien-R44 for question

[allcontributors]

@Xstoudi

@Julien-R44 already contributed before to question

[Xavier Stouder]

@all-contributors please add @Julien-R44 for question

[allcontributors]

@Xstoudi

I've put up a pull request to add @Julien-R44! 🎉