docs: update documentation for pipelines and statements

[lars-reimann]

Closes partially #1028

Summary of Changes

Update the documentation for pipelines and statements. In particular, we now use API elements in the examples that actually exist.

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ MARKDOWN	markdown-link-check	5		0	1.38s
✅ REPOSITORY	git_diff	yes		no	0.12s

See detailed report in MegaLinter reports _Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff_

_MegaLinter is graciously provided by _

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (fba6358) to head (e22068a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1106 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 108 108 Lines 20816 20816 Branches 4091 4092 +1 ========================================= Hits 20816 20816 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[lars-reimann]

:tada: This PR is included in version 0.14.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• npm package (@latest dist-tag)
• v0.14.0
• GitHub release

Your semantic-release bot :package::rocket: