Better help document

[JARVIS-AI]

Greets

For better and more readable plus show version in help output
I think it's more productive like every other program or package like gcc or clang when we command help and get version in that
Plus +
I wanted to colorize the number of version in output but I didn't succeed in it
If you can COMPLETE it that I appreciate that

And

For README after I saw a commit that add update to it but for such a big amount of question that in my work office asked me about how to update NVM so I just bold and change the title to better understanding

Thanks for great shell script tool
Very needed

[ljharb]

I tried this out locally, and I'm not really sure it adds any value to make the version number green - i'm even hesitant about putting it in the help output, when --version exists.

Can you elaborate on why you think this is an improvement?

(the readme and spacing changes seem fine)