Added Bilbao 2019 Event (#626)
Added Bilbao 2019 Event (#626)

* Added Bilbao 2019 Event

* Adding moderator & sponsor

It leave empty because it seems not mandatory.
But we have seen some rejected PR's by this cause.

coderetreat/coderetreat.github.io,coderetreat/coderetreat.github.io,coderetreat/coderetreat.github.io,coderetreat/coderetreat.github.io