add spanish translation for "collab summit" (#1782)
add spanish translation for "collab summit" (#1782)

cc @nodejs/nodejs-es thanks @Maledong for the heads up in https://github.com/nodejs/nodejs.org/issues/1778
phillipj/new.nodejs.org,phillipj/new.nodejs.org,nodejs/new.nodejs.org,yous/new.nodejs.org,yous/new.nodejs.org,nodejs/new.nodejs.org