Unify code examples with docs and screenshot

[MartinKolarik]

Both versions work, but the docs show --from and so does the screenshot at the top so it's confusing the commands then use the other variant.

[jimaek]

It's on purpose to clarify that both work. I prefer keeping "from" as we use it everywhere and it matches Slack

[MartinKolarik]

It hardly "qualifies" anything if it isn't explained anywhere. It just looks like typos. It's fine we support both for compatibility and we can even explicitly mention it somewhere if you want, but the -- version will still feel more familiar to most users so that's what we should promote here.

[jimaek]

If you want to unify anything I would update the screenshot instead of texts. "from" works everywhere and is easier and faster to type. Or keep as is, which to me makes sense.

In the manual we have it documented I think that both work

[MartinKolarik]

In the manual we have it documented I think that both work

We don't, the only place where it is like this are the three code examples. Again, let's add that as well if you want, but the default for CLI should be the -- version.

"from" works everywhere

That's not a good argument, different platforms have different ways of doing things, and people are used to them. Trying to have 100% consistency across them is counterproductive and even useless, as people using the CLI are generally not the same people using the Slack app.

[jimaek]

The point is that you can copy a CLI command into Slack and it will work. That's why in the examples I wanted to avoid formal/strict rules like prefixing everything with --

Lets just document in this readme that from/--from are the same thing and thats it.