Fix README for 722b75df

README.md

@@ -20,6 +20,7 @@ Slash command to record completed tasks as WordPress posts
 curl -X "POST" "http://127.0.0.1:9001/log" \
      -H "Content-Type: application/json; charset=utf-8" \
      -d $'{
-  "text": "I did a thing"
+  "text": "I did a thing",
+  "user_name": ""
 }'
 ```