chore: add configuration recipes

recipes/distributed-manual/README.md

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+# Distributed manual
+
+1. Create user `demo` with password from `AHRIMAN_PASSWORD` environment variable.
+2. Setup repository named `ahriman-demo` with architecture `x86_64`.
+3. Start web server at port `8080`.
+4. Start service in daemon mode with periodic (once per day) repository update.
+5. All updates from worker daemon instance are uploaded to the web service.
+6. Repository is available at `http://localhost:8080/repo`.