switch to TOML config and export republisher feed manifests

demo/README.md

@@ -0,0 +1,20 @@
+# Demo
+
+This directory shows the TOML runtime-config layout for `pygea`.
+
+## Local Run
+
+From the repo root:
+
+```shell
+uv run pygea --config demo/pygea.toml
+```
+
+Because `output_directory` in [`demo/pygea.toml`](/home/abel/src/gitlab.com/guardianproject-ops/pygea/demo/pygea.toml) is relative, output is written under `demo/feed/`.
+
+## Files
+
+- `pygea.toml`: example runtime config with domain, feed definitions, runtime options, and output paths
+
+After a successful run, `demo/feed/manifest.toml` will contain `[[feeds]]` entries
+with absolute `file://` URLs pointing at the generated `rss.xml` files.