chore(deps): update flow-bin

src/templates/post-template.js

@@ -1,3 +1,4 @@
+// @flow
 import React from 'react';
 import { graphql } from 'gatsby';
 import Layout from '../components/Layout';
@@ -6,7 +7,9 @@ import { useSiteMetadata } from '../hooks';
 import type { MarkdownRemark } from '../types';
 
 type Props = {
-  data: MarkdownRemark
+  data: {
+    markdownRemark: MarkdownRemark
+  }
 };
 
 const PostTemplate = ({ data }: Props) => {
@@ -21,7 +24,6 @@ const PostTemplate = ({ data }: Props) => {
   );
 };
 
-
 export const query = graphql`
   query PostBySlug($slug: String!) {
     markdownRemark(fields: { slug: { eq: $slug } }) {
@@ -41,5 +43,4 @@ export const query = graphql`
   }
 `;
 
-
 export default PostTemplate;