docs: replace global install with npx

[BearAlliance]

I had no trouble setting up a new project and creating ADRs without installing globally.

[fire]

Confirmed that at least npx log4brains preview worked.

[thomvaill]

Sorry for the delay. Thank you for your proposal!
However, I am not sure about this one... What are the pros compared to a global install?
Because I have a a cons that bothers me: it is longer to type "npx log4brains " compared to "log4brains "
On the other hand, it enables you to use different versions of Log4brains more easily, I agree.
Also, we have to think about the consequences in the CI pipelines: is it easily possible to cache npx installed packages?

Happy to have feedback on this!

Related ADR: https://thomvaill.github.io/log4brains/adr/adr/20210113-distribute-log4brains-as-a-global-npm-package/

[BearAlliance]

What are the pros compared to a global install?

• One command rather than two (install, then run) for people who do not use it often
• npx will install the package before executing if it is not already present
• Can specify the exact version in the command, so it's invocation is more easily scripted and reproducible

the consequences in the CI pipelines: is it easily possible to cache npx installed packages?

If a project includes log4brains in its dependencies or devDependencies, it will be cached along with the other node_modules. npx will prefer the package already installed if there is one.

From the docs

Package names provided without a specifier will be matched with whatever version exists in the local project.