Change the args example to use Weaver

[smores56]

The internal Arg module has been finicky, so I've replaced the argsBROKEN.roc example with a working one using the new CLI parser I wrote, Weaver. It's basically the same as the previous example, except instead of performing division and logarithm, I'm doing division and max number in a list since log isn't implemented on linux x86 yet.

[lukewilliamboswell]

Are you able to sign your commits? @smores56

[Anton-4]

Thanks @smores56! Nice to have a working args example :tada:

[smores56]

@lukewilliamboswell since this got merged already, not this time, but I'll try to remember for future changes. The CONTRIBUTING.md doc explains what to do well.

[lukewilliamboswell]

@smores56 no worries 👍 😃