Add raw-loader

next.config.js

@@ -11,6 +11,10 @@ module.exports = {
     if (!isServer) {
       config.resolve.fallback.fs = false;
     }
+    config.module.rules.push({
+      test: /\.md$/,
+      use: "raw-loader",
+    });
     return config;
   },
 };