add contributors

[bpinsard]

@all-contributors add @hyruuk for design, ideas, review, bug reports, content and talks.

[bpinsard]

@all-contributors add @cyrand for infrastructure, data acquisition and tools

[allcontributors[bot]]

@bpinsard

I've put up a pull request to add @cyrand! :tada:

[bpinsard]

@all-contributors add @hyruuk for design, ideas, review, bug reports, content and talks.

[allcontributors[bot]]

@bpinsard

I've put up a pull request to add @hyruuk! :tada:

[bpinsard]

@all-contributors add @sangfrois for data collection

[allcontributors[bot]]

@bpinsard

I've put up a pull request to add @sangfrois! :tada:

[bpinsard]

@all-contributors add @FrancoisPgm for data collection, analysis, review

[allcontributors[bot]]

@bpinsard

I've put up a pull request to add @FrancoisPgm! :tada:

[bpinsard]

@all-contributors add @pravishsainath for data collection

[allcontributors[bot]]

@bpinsard

I've put up a pull request to add @pravishsainath! :tada: