diff --git a/README.md b/README.md
index cb1e2fdc..96b5bbb4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # hide-comment-action [![ts](https://github.com/int128/hide-comment-action/actions/workflows/ts.yaml/badge.svg)](https://github.com/int128/hide-comment-action/actions/workflows/ts.yaml)
 
-This is an action to hide comment(s) in a pull request.
+This is an action to hide (minimize) comments in a pull request.
+
+![screenshot](https://user-images.githubusercontent.com/321266/128599297-0edb5a92-7c83-42c7-9f8a-8946b4049ed3.png)
 
 
 ## Getting Started
@@ -9,8 +11,7 @@ To run this action:
 
 ```yaml
 jobs:
-  build:
-    runs-on: ubuntu-latest
+  hide:
     steps:
       - uses: int128/hide-comment-action@v1
         with:
@@ -25,7 +26,9 @@ This action hides comment(s) which matches to the following filters:
 - The author of comment is one of `authors`
 - The comment is not hidden
 
-It hides all comments created by `github-actions` by default.
+It hides all comment(s) created by `github-actions` by default.
+
+It hides comment(s) only if triggered on a pull request event.
 
 
 ## Inputs