Fix "Now line" example from lambda to filters

[edwardtfn]

The example was broken as it was still using lambdas.

[dbuezas]

Thanks!
Now this would also work:

 - entity: ''
    name: Now
    yaxis: y9
    showlegend: false
    line:
      width: 1
      dash: dot
      color: deepskyblue
    x: $fn () => [Date.now(), Date.now()]
    y: $fn () => [0,1]

Which one do you think is a better example?

Let me know and I'll merge or wait a bit :)

[dbuezas]

Or like this too:

- fn: ({ xs, ys }) => ({ xs: [Date.now(), Date.now()], ys: [0, 1] })

[edwardtfn]

I liked both of your suggestions.

[dbuezas]

Then feel free to apply one to the PR and I'll merge it:)

[edwardtfn]

The last option should be formatted as a text, right? Like this:

- fn: "({ xs, ys }) => ({ xs: [Date.now(), Date.now()], ys: [0, 1] })"

Anyways, the first format you shared here worked fine. And it looks nice.

[dbuezas]

Yes true, not putting the quotes wiill sometimes not work. In any case, I agree the other one is prettier, and also shows a different way of doing it

[dbuezas]

Welcome to the contribuitors list :)