app: Create basic app.

app/gatsby-config.js

@@ -0,0 +1,40 @@
+module.exports = {
+  siteMetadata: {
+    title: `Mind Expanding Books`,
+    description: `Kick off your next, great Gatsby project with this default starter. This barebones starter ships with the main Gatsby configuration files you might need.`,
+    author: `@gatsbyjs`,
+  },
+  plugins: [
+    `gatsby-plugin-react-helmet`,
+    {
+      resolve: `gatsby-source-filesystem`,
+      options: {
+        name: `images`,
+        path: `${__dirname}/src/images`,
+      },
+    },
+    `gatsby-transformer-sharp`,
+    `gatsby-plugin-sharp`,
+    {
+      resolve: `gatsby-plugin-manifest`,
+      options: {
+        name: `gatsby-starter-default`,
+        short_name: `starter`,
+        start_url: `/`,
+        background_color: `#663399`,
+        theme_color: `#663399`,
+        display: `minimal-ui`,
+        icon: `src/images/gatsby-icon.png`, // This path is relative to the root of the site.
+      },
+    },
+    `gatsby-plugin-offline`,
+    `gatsby-transformer-json`,
+    {
+      resolve: `gatsby-source-filesystem`,
+      options: {
+        path: `./src/data/`,
+      },
+    },
+    `gatsby-plugin-postcss`
+  ],
+}