Add markdown rendering

pages/guides/index.tsx

@@ -1,5 +1,5 @@
 import { Box, Container, Stack } from '@chakra-ui/react';
-import { Header } from '../../components/header';
+import { GlobalHeader } from '../../components/global-header';
 import { LinksList } from '../../components/links-list';
 import { LinksListItem } from '../../components/links-list-item';
 import { OpensourceBanner } from '../../components/opensource-banner';
@@ -11,7 +11,7 @@ import { PageHeader } from '../../components/page-header';
 export default function Guides() {
   return (
     <Box bg='white' minH='100vh'>
-      <Header />
+      <GlobalHeader />
       <Box mb='60px'>
         <PageHeader
           title={'Visual Guides'}