Add an example of how to create smaller images without npm/yarn

[zsolt-dev]

Only changes the documentation...

[zsolt-dev]

I have looked into the failing steps and they do not seem to be caused by my code changes.

[SomaticIT]

Hi,

The first check is failing because of an external issue. The second check is failing because of a trailing whitespace in your PR (see my review below).

The rest seems fine.

Thanks

[zsolt-dev]

@SomaticIT @yosifkit

Can we please merge it? All the issues except the missing NODE_VERSION env are resolved.

Since it is only a documentation change of an example, I would merge it like it is, unless someone figures out an elegant/short code to add the ENV back.

Thank you

[zsolt-dev]

@SomaticIT

Thank you for your input.

I refactored the second stage based on your input.

Hovewer I have left the build stage in separate commands since I believe it is the best practice to first copy only the package.json and do an npm i first. So that if the package.json does not change, only the code, it skips the step.

Please review.

[SomaticIT]

Good for me

[zsolt-dev]

@yosifkit, @nschonni, @astellingwerf

One more review is required for the merge. Would anyone please review? Thank you