Add roadmap image page

pages/_document.tsx

@@ -0,0 +1,29 @@
+import Document, { DocumentContext } from 'next/document';
+import { ServerStyleSheet } from 'styled-components';
+
+export default class MyDocument extends Document {
+  static async getInitialProps(ctx: DocumentContext) {
+    const sheet = new ServerStyleSheet();
+    const originalRenderPage = ctx.renderPage;
+
+    try {
+      ctx.renderPage = () => originalRenderPage({
+        enhanceApp: (App) => (props) =>
+          sheet.collectStyles(<App {...props} />)
+      });
+
+      const initialProps = await Document.getInitialProps(ctx);
+      return {
+        ...initialProps,
+        styles: (
+          <>
+            {initialProps.styles}
+            {sheet.getStyleElement()}
+          </>
+        )
+      };
+    } finally {
+      sheet.seal();
+    }
+  }
+}