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-rw-r--r--README.md15
1 files changed, 11 insertions, 4 deletions
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+++ b/README.md
@@ -27,11 +27,18 @@ It is recommended to run `scadere-check` as a cron job.
 
 ```console
 $ scadere-listen --help
-Usage: scadere-listen [-h] [-v] INPUT URL [[HOST][:PORT]]
+Usage: scadere-listen [-h] [-v] PATH URL [[HOST][:PORT]]
 
-Serve the TLS certificate expiration feed from INPUT file
-for base URL at HOST:PORT, where HOST defaults to localhost
-and PORT is selected randomly if not specified.
+Serve at URL Atom feeds for TLS certificate renewal reminder.
+It is possible for clients to filter domains
+using one or more "domain" URL queries.
+
+The certificate information is read from the file at PATH,
+which is generated by scadere-check(1).
+
+The server listens for TCP connections coming to HOST:PORT,
+where HOST defaults to localhost and PORT is selected randomly
+if not specified.
 
 Options:
   -h, --help     show this help message and exit