[examples/learn,docs,#910][m]: add conclusions at the end of each tutorial, add page title to each tutorial page, fix hydration error re modified metadata field

site/components/MDXPage.tsx

@@ -1,6 +1,7 @@
 import { MDXRemote } from 'next-mdx-remote';
 import layouts from 'layouts';
 import DocsPagination from './DocsPagination';
+import { NextSeo } from 'next-seo';
 
 export default function MDXPage({ source, frontMatter }) {
   const Layout = ({ children }) => {
@@ -10,9 +11,10 @@ export default function MDXPage({ source, frontMatter }) {
     return <LayoutComponent {...frontMatter}>{children}</LayoutComponent>;
   };
 
+
   return (
     <Layout>
-      <MDXRemote {...source} components={{ DocsPagination }} />
+      <MDXRemote {...source} components={{ DocsPagination, NextSeo }} />
     </Layout>
   );
 }