README: correct example tool; support address for publisher accounts

README.md

@@ -53,8 +53,8 @@ go install git.eidonix.com/eidonix/cletus-plugins/sdk/cmd/cletus-plugin@latest
 cletus-plugin new acme.gauge-check                  # a working plugin from the template
 cd gauge-check
 cletus-plugin check                                 # the store's automated checks
-cletus-plugin run -files ./testdata tools           # list the chat tools
-cletus-plugin run -files ./testdata invoke gauge_check_hello '{"name":"Ada"}'
+cletus-plugin run tools                             # list the chat tools
+cletus-plugin run invoke gauge_check_count_lines '{"path":"sample.txt"}'
 ```
 
 `run` starts your worker under a test host that answers host calls the way
@@ -67,6 +67,8 @@ Plugins reach users only through the Eidonix plugin store, and Cletus
 installs nothing else. You'll submit source code; Eidonix builds it, checks
 it, reviews it and signs it. See `docs/submission.md`.
 
+Questions, and requests for a publisher account: support@eidonix.com
+
 ## Licence
 
 Apache License 2.0 (`LICENSE`). The names Cletus and Eidonix are not