Add Open Graph Markup tags to header #65
Description
Add Open Graph Markup tags to header.html in the _includes folder of the gh-pages branch
Guide: https://developers.facebook.com/docs/sharing/webmasters#markup
This is to ensure that when the website is shared on slack, facebook, twitter, etc. It automatically displays with an image and Title instead of just the URL.
Feel free to ask for more information if you don't know what text to put into the tags.