Facilitating a contribution day for design handbook update

As previously discussed in SlackSlack Slack is a Collaborative Group Chat Platform https://slack.com/. The WordPress community has its own Slack Channel at https://make.wordpress.org/chat/. #design, @folletto and myself worked on a contribution day format suggestion. This was tested at WordCampWordCamp WordCamps are casual, locally-organized conferences covering everything related to WordPress. They're one of the places where the WordPress community comes together to teach one another what they’ve learned throughout the year and share the joy. Learn more. Tokyo and from there a document was created to iterate based on feedback.

There is now a new handbook page, this is just a suggestion but has a guide to help you facilitate a successful contribution day for design.