Use standard theme for example

Author: andrewbranch

examples/example-site/content/blog/hello-world/index.md

@@ -4,6 +4,8 @@ date: "2015-05-01T22:12:03.284Z"
 description: "Hello World"
 ---
 
+
+
 ```jsx
 const Wrapper = styled.section`
   border-radius: 4px;
@@ -16,9 +18,9 @@ const Wrapper = styled.section`
   }
 `
 
-export default function MyComponent({ children }) = (
-  <Wrapper>{children}</Wrapper>
-)
+export default function MyComponent({ children }) {
+  return <Wrapper>{children}</Wrapper>;
+}
 ```
 
 ```js

examples/example-site/gatsby-config.js

@@ -32,13 +32,8 @@ module.exports = {
           {
             resolve: path.resolve(__dirname, '../..'),
             options: {
-              colorTheme: {
-                defaultTheme: 'Ayu Mirage',
-                prefersDarkTheme: 'Ayu Dark',
-              },
               injectStyles: true,
               extensions: [
-                { identifier: 'teabyii.ayu', version: '0.18.0' },
                 {
                   identifier: 'jpoissonnier.vscode-styled-components',
                   version: '0.0.26',