Add OpenGraph and Twitter cards statically

[shaedrich]

Fix #223

[jemc]

I prefer this simple approach over the one in PR #228.

I don't think we get much value from the dynamic titles/descriptions pulled from the tutorial.

[shaedrich]

Too bad, but I can't say, I didn't expect that.

However, the OpenGraph data will be a bit misleading then. We essentially wrongfully tell the people, getting the link preview, that they will get an "empty" playground editor and conceal the fact, that it will be prefilled with what is send along in the URL making this essentially a distinct page 🤷🏻

[jemc]

We essentially wrongfully tell the people, getting the link preview, that they will get an "empty" playground editor and conceal the fact, that it will be prefilled

Nothing about the description you wrote says or even implies that the editor they get to will be initially empty. So I don't think this is a problem in practice.

Let's merge it. 👍

[shaedrich]

Nothing about the description you wrote says or even implies that the editor they get to will be initially empty.

Not explicitly, but implicitly as this is quite common.