Add output schema registry and public contract docs

README.md

@@ -66,6 +66,16 @@ audita process transcript.json \
   --report-json report.json
 ```
 
+Select an explicit output schema (default is `bare-segments`):
+
+```sh
+audita process transcript.json \
+  --glossary glossary.yaml \
+  --output-schema audita-v1 \
+  --output corrected.json \
+  --report-json report.json
+```
+
 Recommended config-based run:
 
 ```sh
@@ -139,6 +149,8 @@ audita config print-effective --config audita.yml
 ```
 
 For full config-file schema and examples, see [`docs/configuration.md`](docs/configuration.md).
+For output-schema details, see [`docs/output-schemas.md`](docs/output-schemas.md).
+For CLI/process compatibility guarantees, see [`docs/public-contract.md`](docs/public-contract.md).
 
 ### Modules