pipelines: filters: parser: Add a nest_under parameter

[RaJiska]

Documentation for PR fluent/fluent-bit#9828

[alexakreizinger]

made a few suggestions for style and clarity, but LGTM!

and thanks for opening a PR :)

[RaJiska]

All good to me! Thanks @alexakreizinger for helping making it clearer and in proper English~~

[RaJiska]

Hi @alexakreizinger , I'm not entirely sure how the PR flow happens on this repo, but I see it has been merged already, yet the PR linked to this documentation hasn't been approved nor merged yet. If this goes live this might cause discrepancy between the documentation and actual options available until the referenced PR is merged as well.

[0x4c6565]

Hi @alexakreizinger , I'm not entirely sure how the PR flow happens on this repo, but I see it has been merged already, yet the PR linked to this documentation hasn't been approved nor merged yet. If this goes live this might cause discrepancy between the documentation and actual options available until the referenced PR is merged as well.

I've just spent a good 30 minutes scratching my head as to why nest_under isn't working! Mystery solved :)

[lockewritesdocs]

@RaJiska, thanks for pointing out this discrepancy! We reverted the docs change until the related linked PR is merged with the appropriate code changes.