Added strikethrough

[melody-notpond]

This pull request adds strikethrough to druid and updates the markdown example to use ~~this syntax~~ for strikethrough.

[maan2003]

Thanks! Probably a good idea to add this to example as well.

[melody-notpond]

Thanks! Probably a good idea to add this to example as well.

@maan2003 Which example is that?

[maan2003]

markdown_preview.rs, I meant in the sample text

[cmyr]

Worth noting that I think this may only work on certain platforms, maybe even only linux? I don't recall exactly the state of this in piet.

[melody-notpond]

Worth noting that I think this may only work on certain platforms, maybe even only linux? I don't recall exactly the state of this in piet.

Oh no. I have no way to test it on Windows/macOS and don't know how to test it on the web. I may send a pull request for piet if thats the case, since I really want strikethrough for my matrix client. Any idea how I can start tackling this?

[cmyr]

Here's the tracking issue, without much info. It may be that this is now only missing on mac? in any case I'll post some more info here: linebender/piet#301

[jneem]

This can be merged, right?

[jneem]

I'm going to take that as a "yes"