Media tags for social sharing

[jurrian]

There is already an issue for indexing documents #74, but currently there is no description tag or any SEO for the homepage. Should be an easy fix and quick win.

[joepio]

Might be a good idea, but I'm not sure whether the description tag actually adds value. IIRC, google prefers body text, which is already crawled correctly:

[jurrian]

I think it works for Google and such, but I added it as an example on LinkedIn:

I had to type the text myself.

[joepio]

I'll add Helmet and create an image + description for social sharing

[joepio]

Added the tags using helmet, but the facebook crawler requires pre-rendered / hardcoded tags.

Hardcoded is not an option, as the service has two different URLs running on one instance.

Pre-rendering is possible with Netlify, but that requires quite a bit of setup and DNS transfer. I'll leave this open, but probably won't fix it anytime soon.