Update README

Author: evankanderson

README.md

@@ -4,4 +4,12 @@ Web service to detect SPDX license from string
 
 ## Usage
 
-curl -vvv -H "Content-Type: text/plain" --data @LICENSE http://localhost:8080
+```
+curl -H "Content-Type: text/plain" --data @LICENSE http://localhost:8080
+```
+
+Or, hosted on Cloud Run:
+
+```
+curl -H "Content-Type: text/plain" --data @mediator/LICENSE https://spdx-detector-562949304223.us-central1.run.app
+```