docs/instruction-stepping.md covers the feature thoroughly but has no link back to the feature matrix

[Timi16]

Backlog source: docs/issues/backlog-100-issues.md
Backlog item: I-023
Section: Section C — Feature Reference Docs (Issues 23–40)
Tag: DOC
Commit context: 9776e85

Observed gap

• docs/instruction-stepping.md (11 KB) covers the feature thoroughly but has no link back to the feature matrix — readers don't know which surfaces support it.

Requested outcome

• Turn this backlog item into a concrete repo change in the referenced documentation, tutorial, architecture guide, or contributor workflow.
• Update related cross-links, examples, or adjacent documentation where needed so the change does not leave the docs tree inconsistent.

Completion criteria

• The gap described above is resolved in the repository.
• Any affected docs navigation or contributor guidance remains internally consistent.
• The issue can be closed with a concrete documentation or process change, not just discussion.