add Landing page (#7)

src/components/landing/SocialProofSection/SocialProofSection.tsx

@@ -0,0 +1,19 @@
+import React, { FC } from 'react';
+import {
+  Heading,
+  HStack,
+} from '@chakra-ui/react';
+import { CtaButton, PageSection } from '../';
+import { ReviewsSlider } from './ReviewsSlider';
+
+export const SocialProofSection: FC = () => {
+  return (
+    <PageSection>
+      <Heading as='h2'>Нас выбирают</Heading>
+      <ReviewsSlider />
+      <HStack w='full' justify='flex-end'>
+        <CtaButton />
+      </HStack>
+    </PageSection>
+  );
+};