docs(readme): convert README.adoc -> Markdown (renders on Glama/profile/community-health) (#36)

README was AsciiDoc → renders as raw markup in Markdown consumers (Glama
MCP directory, GitHub community-health, GitHub profile). pandoc
asciidoc→GFM (badges → clickable), SPDX header kept, duplicate `.adoc`
removed. Part of the estate README-format fix.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: hyperpolymath

README.adoc

@@ -0,0 +1,89 @@
+<!--
+SPDX-License-Identifier: CC-BY-SA-4.0
+SPDX-FileCopyrightText: 2025-2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
+-->
+
+[![Topology](https://img.shields.io/badge/Project-Topology-9558B2)](TOPOLOGY.md)
+[![80](https://img.shields.io/badge/Completion-80%25-green)](TOPOLOGY.md) [![OpenSSF Best Practices](https://img.shields.io/badge/OpenSSF-Best_Practices-green?logo=opensourcesecurity)](https://www.bestpractices.dev/en/projects/new?repo_url=https://github.com/hyperpolymath/InvestigativeJournalist.jl)
+[![License: PMPL-1.0](https://img.shields.io/badge/License-MPL--2.0-blue.svg)](https://github.com/hyperpolymath/palimpsest-license) <embed
+src="https://api.thegreenwebfoundation.org/greencheckimage/github.com"
+data-link="https://www.thegreenwebfoundation.org/green-web-check/?url=github.com" />
+image:<a href="https://img.shields.io/badge/Julia-1.10+-9558B2?logo=julia"
+data-link="https://julialang.org/">Julia</a>
+
+**Structured Evidence for High-Stakes Reporting**
+
+*Turn messy source material into audit-ready investigative artifacts.*
+
+<div id="toc">
+
+</div>
+
+# Overview
+
+InvestigativeJournalist.jl is a Julia toolkit for managing the
+end-to-end investigative reporting workflow. It provides high-integrity
+structures for ingesting diverse sources, extracting verifiable claims,
+and building a corroboration matrix that minimizes editorial and legal
+risk.
+
+# Core Capabilities
+
+- **Multi-Source Ingestion**: Ingest documents, web snapshots, and
+  interview notes with automatic hashing and deduplication.
+
+- **Claim Extraction**: Extract discrete claims and link them to
+  entities (people, orgs, places).
+
+- **Corroboration Matrix**: Quantify confidence levels across claims and
+  multiple supporting sources.
+
+- **Auditable Provenance**: Every claim in your final draft traces back
+  to a cryptographically hashed source document.
+
+- **Timeline & Network Analysis**: Visualize actors and events to detect
+  gaps or contradictions in narratives.
+
+# Quick Start
+
+```julia
+using InvestigativeJournalist
+
+# Ingest a source document
+doc = ingest_source("docs/leaked_contract.pdf")
+
+# Extract claims and link to entities
+claims = extract_claims(doc)
+link_entities!(claims)
+
+# Build a corroboration matrix
+matrix = corroborate(claims, all_docs())
+
+# Generate a publication-ready evidence pack
+pack = generate_publication_pack(story_draft)
+```
+
+# Suggested Tech Stack
+
+- **Data**: `DataFrames.jl`, `Arrow.jl`, `JSON3.jl`
+
+- **Persistence**: `SQLite.jl` or `DuckDB.jl`
+
+- **Text Analysis**: `TextAnalysis.jl`
+
+- **Visualization**: `Makie.jl`
+
+# Safety & Governance
+
+- **Source Protection**: Support for encrypted fields and redacted
+  exports for sensitive whistleblowers.
+
+- **Audit Trail**: Immutable logs for every change in confidence scores
+  or claim text.
+
+- **Zero-Unreferenced Policy**: Final publication packages prevent
+  inclusion of any claim without a verified evidence link.
+
+# License
+
+Palimpsest-MPL-1.0 License - see [LICENSE](LICENSE) for details.