Added IDEO as a featured showcase site (#13860)
Added IDEO as a featured showcase site (#13860)

* Added IDEO as a featured showcase site 

Made featured true because of https://github.com/gatsbyjs/gatsby/issues/13859

* Update sites.yml

ChristopherBiscardi/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby