Update the 2023 social image

Merge pull request #105 from baseballhackday/toronto-update

added sponsors

Merge pull request #81 from baseballhackday/df-boston-update

Updating Boston Sponsors, judges little style fix

Merge pull request #62 from baseballhackday/df-2017update1

Minor cleanup of code, update contents to 2017

Merge pull request #18 from baseballhackday/archive-2015

Archiving 2015 conetents for 2016 site

Submission page linked

Updating ga script