Gold sponsor

Visibility on the front page (+110,000 views per month) in the "sponsors" section, visibility on the footer of all the pages from the main website at https://www.jhipster.tech (+550,000 views per month), visibility on the GitHub main project page (+15,000 views per month), 3 "bug bounties" per month, thank you tweet. More information at http://www.jhipster.tech/sponsors/