README.md in danger-auto_label-1.0.0 vs README.md in danger-auto_label-1.1.0

@@ -1,17 +1,30 @@
 ### auto_label
 
 No more set label to issue or pull request manually.  
 Example, you can set labels simply by changing the PR title.
 
-> Very simple usage. Set wip label automatically when the PR title contains '[WIP]'.
-  ```sample.rb
+![sample](gif/sample.gif)
+
+### Usage
+
+Very simple usage.  
+
+First, install gem.
+
+```
+$ gem install danger-auto_label
+```
+
+Set wip label automatically when the PR title contains '[WIP]'.
+
+```sample.rb
   if github.pr_title.include? "[WIP]"
-    auto_label.set_wip(github.pr_json["number"])
+    auto_label.wip=(github.pr_json["number"])
   end
-  ```
+```
 
 #### Methods
 
-`set_wip` - Set WIP label to PR.
+`wip=` - Set WIP label to PR.
 
 `set` - Set any labels to PR by this.