docs(README): Add ports mapping to Docker Compose example

[otaviosilva22]

Update Docker Compose example with ports usage, because might be useful.

Description

Update Docker Compose example in readme.md with ports usage.

Motivation and Context

Ports might be useful to expose container to the host machine. This information is very important.

Testing Details

It's only readme.md update.

Example Output(if appropriate)

Types of changes

• Documentation
• Version change (Update, remove or add more Node.js versions)
• Variant change (Update, remove or add more variants, or versions of variants)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (none of the above)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• All new and existing tests passed.

[LaurentGoderre]

Maybe have both because they serve different purpose.

[otaviosilva22]

@LaurentGoderre you are right. I added a new commit, what do you think?

[LaurentGoderre]

LGTM

[PeterDaveHello]

Please allow me to clarify the PR title.

[PeterDaveHello]

@otaviosilva22 do you mind squashing the commits and updating the commit message(Maybe like the PR title)? Otherwise LGTM 👍

[otaviosilva22]

@LaurentGoderre, do you know how I can get a aprovall from a maintainer?

[LaurentGoderre]

@otaviosilva22 I think we can merge after the suggestions from @PeterDaveHello are in

[otaviosilva22]

@LaurentGoderre, some checks were not successful.

Run find . -name "*.md" | xargs -n 1 markdown-link-check -c markdown_link_check_config.json -q

ERROR: 1 dead links found in ./README.md !
[✖] https://pkgs.alpinelinux.org/package/edge/main/x86/libc6-compat → Status: 404
Error: Process completed with exit code 123.

What do you suggest?

[otaviosilva22]

@LaurentGoderre, I fixed libc6-compat link. What do you think?

[SimenB]

thanks!