<!-- SPDX-License-Identifier: Apache-2.0
     https://www.apache.org/licenses/LICENSE-2.0 -->

## Summary

- `docs/release-management/README.md` Status section still said "No `release-*` skill code exists in the framework today" despite `release-announce-draft` shipping as experimental in #512.
- Promote Status from **Proposed** to **Experimental (1 of 10 skills shipped)** with a direct link to the skill file.
- Add a Status column to the Skills table so per-skill maturity is visible at a glance; mark nine skills `proposed` and `release-announce-draft` **experimental**.
- Update the Mode mapping paragraph which said "each marked `proposed`" to reflect that `release-announce-draft` is now `experimental`.

## Test plan

- [ ] `test -f docs/release-management/spec.md` passes
- [ ] `test -f docs/release-management/process.md` passes
- [ ] `test -f projects/_template/release-management-config.md` passes
- [ ] `uv run --project tools/skill-and-tool-validator skill-and-tool-validate` produces no hard errors (86 pre-existing SOFT ASF-coupling advisories only)
- [ ] Link `../../skills/release-announce-draft/SKILL.md` resolves (skill shipped in #512)

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