docs: convert absolute paths to relative paths

[bombard1004]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/docs.nestjs.com/blob/master/CONTRIBUTING.md

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Docs
• Other... Please describe:

What is the current behavior?

Issue Number: closes #3067

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[kamilmysliwiec]

We intentionally use absolute paths for links that should open in a new browser tab (with target = blank)

[bombard1004]

Hi, thank you for sharing the context.

After further investigation, I’ve found that the common practice is to append {:target="_blank"} to Markdown links to open them in a new tab. Unfortunately, it appears that the markedjs library does not support parsing this syntax.

I also noticed that the document mixes Markdown links and HTML anchor tags. Given this, I’d like to suggest using HTML anchor tags for internal links that need to open in a new tab, allowing the use of target="_blank". I would appreciate your thoughts on this approach.

[kamilmysliwiec]

Are we sure this is worth the effort though? We don't plan to add any translations to the docs any time soon (and possibly ever).