Alter screenshot for social media previews.

[danielwboyce]

The default social media preview is a cropped-off version of my headshot. Changing that would be good.

[danielwboyce]

Did some reading and added the <meta> tags that should have resolved the screenshot for both Twitter and Facebook. You can preview the share cards for each of these sites at https://developers.facebook.com/tools/debug/sharing/ and https://cards-dev.twitter.com/validator. The Twitter card previews correctly, but Facebook still doesn't. Need to investigate why; maybe Facebook actually uses some specialized <meta> tags like Twitter does?