add raw-loader for markdown

.storybook/webpack.config.js

@@ -5,6 +5,10 @@ const modulesPath = path.resolve(__dirname, "../modules")
 module.exports = {
   module: {
     rules: [
+      {
+        test: /\.md$/,
+        use: "raw-loader",
+      },
       {
         test: /\.scss$/,
         loaders: [
@@ -28,7 +32,7 @@ module.exports = {
           },
         ],
         include: modulesPath,
-      }
+      },
-    ]
+    ],
   },
 }