Update

ts/README.md

@@ -28,15 +28,23 @@ On responses:
 
 Examples:
 
+The `flexible-event` utility accepts comma-separated lists of the
+number of windows and summary buckets per trigger data. This is
+essentially an unzipped list of two-tuples, one per trigger data.
+
 ```sh
 npm run flexible-event -- -w 1,2,3 -b 4,5,6
 ```
 
+The utility also will parse (in a rudimentary way) the source registration
+JSON to compute the number of windows / summary buckets.
+
 ```sh
 npm run flexible-event -- -f /path/to/source_registration.json
 ```
 
 Here is an example which matches the default config for navigation sources:
+
 ```sh
 npm run flexible-event -- -w 3,3,3,3,3,3,3,3 -b 3,3,3,3,3,3,3,3 -m 3 -t navigation
 ```