[jm-rivera]

Rewrites the README and contributing guide for a public reader and moves automation and ingestion settings into docs/development.md.

README.md now lists the eight covered datasets, each linking its transformations.md, and gives a local recipe for World Bank IDS that needs no cloud access. It states that only the *_dc_ingestion assets need ONE's dev-fin-observatory project. CONTRIBUTING.md gains the code of conduct and security links, says where to raise which kind of issue, and lists the exact CI checks. The automation section, the DCP_* and skills settings that only .env.example explained, the pinned dfo-ontology commit and a CI summary move to docs/development.md.

CONTRIBUTING.md links the organisation code of conduct, security policy and support guide by absolute URL. Those links resolve once DevelopmentFinanceObservatory/.github#1 merges.

The README uses dbt run and not dbt build for the local recipe. A single dg launch --assets '*world_bank_ids_dc_export' fails at the dbt step, because cross-dataset dbt tests query schemas of datasets that were never built. Making a one-command local run work is a code change for a separate PR.

Testing: pre-commit run --files passes on the three files. The World Bank IDS recipe ran end to end and wrote the observation CSVs under data/processed/world_bank_ids/.