diff --git a/README.md b/README.md
index 4784d83..d31b88b 100644
--- a/README.md
+++ b/README.md
@@ -18,3 +18,16 @@ npx install-peerdeps --dev eslint-config-coldsurfers
 ```
 
 Basically, extending just `coldsurfers` is for nodejs-typescript eslint configuration.
+
+# Prettier Config Setting
+
+`.prettierrc.json`
+
+```json
+{
+    "trailingComma": "es5",
+    "tabWidth": 2,
+    "semi": false,
+    "singleQuote": true
+}
+```
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