add comments about next steps

Author: Allicolyer

packages/gatsby-theme/src/components/Upvote.tsx

@@ -4,6 +4,11 @@ import CustomButton from './CustomButton';
 import { loginUser } from '../utils/auth/auth';
 import WithCurrentUser from '../utils/auth/WithCurrentUser';
 
+// Still to-do:
+// Query the backend with the ID of the tutorial to see whcih tutorial was upvoted
+// Create a way to store which user has upvoted the tutorial so that they can only
+// upvote it once
+
 const Upvote = () => {
   return (
     <WithCurrentUser>

packages/gatsby-theme/src/components/layout.tsx

@@ -13,7 +13,7 @@ const MainLayout = styled.main`
 
 type LayoutProps = React.ReactNode & RouterProps;
 
-const Layout = ({ children }) => {
+const Layout: React.FunctionComponent<LayoutProps> = ({ children }) => {
   const { site } = useLayoutQuery();
 
   const { title, description, keywords } = site!.siteMetadata;

packages/gatsby-theme/src/utils/auth/WithCurrentUser.js

@@ -1,4 +1,4 @@
-import React, { Component } from 'react';
+import React from 'react';
 import { Query } from 'react-apollo';
 import { optionalChaining } from '../helpers';
 import gql from 'graphql-tag';