diff --git a/.travis.yml b/.travis.yml
index cf30c3f..40ae759 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,4 +10,4 @@ install:
 script:
   - npm test
 after_failure:
-  - test $TRAVIS_PULL_REQUEST == "false" && $(npm bin)/textlint -f checkstyle README.md | reviewdog -f=checkstyle -name="textlint" -ci="travis"
\ No newline at end of file
+  - test $TRAVIS_PULL_REQUEST == "true" && $(npm bin)/textlint -f checkstyle README.md | reviewdog -f=checkstyle -name="textlint" -ci="travis"
\ No newline at end of file
diff --git a/README.md b/README.md
index f1935d7..331a8df 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,56 @@ See also:
 
 - [reviewdog — A code review dog who keeps your codebase healthy – Medium](https://medium.com/@haya14busa/reviewdog-a-code-review-dog-who-keeps-your-codebase-healthy-d957c471938b)
 
-## Usage
+## How to setup?
 
 - [ ] Write usage instructions
 
+### 1. Setup .travis.yml
+
+```yaml
+sudo: false
+language: node_js
+node_js: "stable"
+env:
+- REVIEWDOG_VERSION=0.9.5
+install:
+  - mkdir -p ~/bin/ && export export PATH="~/bin/:$PATH"
+  - curl -fSL https://github.com/haya14busa/reviewdog/releases/download/$REVIEWDOG_VERSION/reviewdog_linux_amd64 -o ~/bin/reviewdog && chmod +x ~/bin/reviewdog
+  - npm install
+script:
+  - npm test
+after_failure:
+  - test $TRAVIS_PULL_REQUEST == "false" && $(npm bin)/textlint -f checkstyle README.md | reviewdog -f=checkstyle -name="textlint" -ci="travis"
+```
+
+See [.travis.yml](.travis.yml) for details.
+
+### 2. Add `REVIEWDOG_GITHUB_API_TOKEN` to Travis CI Config
+
+Get your [personal access token](https://github.com/settings/tokens/new "New personal access token").
+
+![repo](https://monosnap.com/file/duLWpPrFoqR8uPvOZOniupuiptE1GB.png)
+
+Set the access token to `REVIEWDOG_GITHUB_API_TOKEN`.
+
+```
+travis env set REVIEWDOG_GITHUB_API_TOKEN <YOUR_TOKEN>
+```
+
+You can check the result:
+
+```
+$ travis env list
+# environment variables for azu/textlint-reviewdog-example
+REVIEWDOG_GITHUB_API_TOKEN=[secure]
+```
+
+### 3. Submit PR
+
+See Example Pull Request.
+
+- [docs: Update README by azu · Pull Request #1 · azu/textlint-reviewdog-example](https://github.com/azu/textlint-reviewdog-example/pull/1 "docs: Update README by azu · Pull Request #1 · azu/textlint-reviewdog-example")
+
 ## Running tests
 
 Install devDependencies and Run `npm test`: