diff --git a/README.md b/README.md
index 7b3f730..495d81d 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,7 @@ Currently supports [GIPHY](https://giphy.com).
 
 ### Create Workflow
 
-The default trigger comment is `lgtm`, but you can specify any trigger comment with `jobs.<job_id>.steps.with`.  
-The trigger comment match a comment in case-insensitive.
-It means we can use the both of `lgtm` and `LGTM` as a trigger (sure, `Lgtm` and `lGtm` can be used).
+`jobs.<job_id>.steps.with.trigger` should be an JSON string array of regexp.
 
 ```yaml
 name: Send LGTM reaction