comma: upgrade template

[fj0r]

• README.md: delete the content of template and replace it with a link
• comma_test: T/F execute a closure and return a true or false
• comma_tmpl: add example of building image

[fdncred]

i don't plan on landing anymore after this one for the reasons we've talked about many times.

[fj0r]

Okay, I'll create a separate repository to house it. However, I don't understand what is the essential difference between comma and other scripts, so that it cannot be put here. Is there a clear rule?

[fdncred]

As we've discussed before, the rule is, this is not your personal repository. It's for sharing interesting scripts with others, not doing development on scripts.

[fj0r]

It was actually used for development purposes before, and I didn't mean to do that. But now that it's done and all that's left is patching, is that okay?

[fj0r]

I'd better create a new repo, excuse me.

[fdncred]

i'll land this when you tell me it's ready.

[fj0r]

So do I need to create a new repository? I think there may not be any major updates in the future (however, I can’t guarantee it), and updates may not occur more than once a month.
But if I create a new repo, I may have to adjust the module structure and maybe configure the package management system, otherwise it may be more troublesome for me to use it myself (I may need to introduce submodules into my git configuration file)

[fdncred]

I suggest you create a repo with all your scripts. This isn't the first one that you've developed in our repo. You should develop and continue to tweak your neat scripts in your repo until the point that you think they're done. Then, if you want to share them with the nushell community, you can share here.

[fj0r]

Alright, I got it.

[fj0r]

Improved README.md and I think it will not be updated recently, please merge it