Update README.md

README.md

@@ -520,19 +520,19 @@ that are _not_ under the base URL—such as pages—will not be validated.
 
 **A:** Yes. Be sure to add the swagger serve middleware prior to installing the OpenApiValidator. This will ensure that `swagger-ui-express` is able to fully prepare the spec before before OpenApiValidator attempts to use it.
 
-	```javascript
-	app.use('/', swaggerUi.serve, swaggerUi.setup(documentation))
-
-	new OpenApiValidator({
-	  apiSpec: documentation,
-	  validateResponses: true,
-	  securityHandlers: {
-	    bearerAuth: (req, scopes, schema) => {
-	      console.log(req, scopes, schema)
-	    }
-	  }
-	}).install(app)
-	```
+  ```javascript
+  app.use('/', swaggerUi.serve, swaggerUi.setup(documentation))
+
+  new OpenApiValidator({
+    apiSpec: documentation,
+    validateResponses: true,
+    securityHandlers: {
+      bearerAuth: (req, scopes, schema) => {
+        console.log(req, scopes, schema)
+      }
+    }
+  }).install(app)
+  ```
 ## Contributors ✨
 
 Contributions welcome! Here's how to [contribute](CONTRIBUTING.md).