Add rss link to main and userpage

Author: velopert

src/pages/main/MainPage.tsx

@@ -9,6 +9,7 @@ import MainTagWidgetContainer from '../../containers/main/MainTagWidgetContainer
 import MainNoticeWidgetContainer from '../../containers/main/MainNoticeWidgetContainer';
 import MainMobileHead from '../../components/main/MainMobileHead';
 import usePreserveScroll from '../../lib/hooks/usePreserveScroll';
+import { Helmet } from 'react-helmet-async';
 
 interface MainPageProps {}
 
@@ -24,6 +25,15 @@ const MainPage: React.FC<MainPageProps> = () => {
 
   return (
     <MainTemplate>
+      <Helmet>
+        <link
+          data-rh="true"
+          rel="alternate"
+          type="application/rss+xml"
+          title="RSS"
+          href="https://v2.velog.io/api/v2/rss"
+        />
+      </Helmet>
       <MainTemplate.Left>
         <MainSideMenu />
       </MainTemplate.Left>

src/pages/velog/tabs/UserPostsTab.tsx

@@ -7,6 +7,7 @@ import SearchResult from '../../../containers/search/SearchResult';
 import styled from 'styled-components';
 import media from '../../../lib/styles/media';
 import usePreserveScroll from '../../../lib/hooks/usePreserveScroll';
+import { Helmet } from 'react-helmet-async';
 
 export interface UserPostsTabProps
   extends RouteComponentProps<{ username: string }> {
@@ -28,6 +29,15 @@ const UserPostsTab: React.FC<UserPostsTabProps> = ({
   return (
     <>
       <HideOnMobile>
+        <Helmet>
+          <link
+            data-rh="true"
+            rel="alternate"
+            type="application/rss+xml"
+            title="RSS"
+            href={`https://v2.velog.io/api/v2/rss/${username}`}
+          />
+        </Helmet>
         <VelogSearchInputContainer
           initial={q || ''}
           username={match.params.username}