Add local source publication

docs/config.md

@@ -2,15 +2,15 @@
 
 ## Config file location
 
-`distributor run --config <path> --dry-run` loads the YAML config at the path provided by `--config`.
+`distributor run --config <path>` loads the YAML config at the path provided by `--config`.
 
-If `--config` is omitted during dry-run, the built-in default path is:
+If `--config` is omitted during run, the built-in default path is:
 
 ```text
 /usr/local/etc/distributor/config.yml
 ```
 
-The current implementation loads and validates configuration only. Bundle discovery and publication are not implemented yet.
+The current implementation supports local-to-local source-file publication. Remote backends and HTML publication are not implemented yet.
 
 ## Minimal config
 
@@ -40,18 +40,16 @@ pipelines:
       on_digest_mismatch: fail
     destinations:
       - id: archive
-        backend: s3
-        endpoint: https://s3.example.com
-        bucket: reports
-        prefix: archive
-        region: us-east-1
-        force_path_style: true
-        credentials:
-          access_key_id_env: DISTRIBUTOR_S3_ACCESS_KEY_ID
-          secret_access_key_env: DISTRIBUTOR_S3_SECRET_ACCESS_KEY
+        backend: local
+        path: /srv/reports/archive
         publish:
           source: true
           html: false
+        transfer:
+          on_destination_same: skip
+          on_destination_older: replace
+          on_destination_newer: skip
+          on_conflict: fail
 ```
 
 ## Reference