Renamed 'examples' folder to 'codepen' for clarity

Author: bvaughn

examples/hello-world.js renamed to codepen/hello-world.js

@@ -12,7 +12,7 @@ redirect_from:
   - "docs/getting-started-zh-CN.html"
 ---
 
-The easiest way to get started with React is to use <a href="/examples/hello-world" target="_blank">this Hello World example code on CodePen</a>. You don't need to install anything; you can just open it in another tab and follow along as we go through examples. If you'd rather use a local development environment, check out the [Installation](/docs/installation.html) page.
+The easiest way to get started with React is to use <a href="/codepen/hello-world" target="_blank">this Hello World example code on CodePen</a>. You don't need to install anything; you can just open it in another tab and follow along as we go through examples. If you'd rather use a local development environment, check out the [Installation](/docs/installation.html) page.
 
 The smallest React example looks like this:
 

examples/introducing-jsx.js renamed to codepen/introducing-jsx.js

@@ -46,7 +46,7 @@ ReactDOM.render(
 );
 ```
 
-<a href="/examples/introducing-jsx" target="_blank">Try it on CodePen.</a>
+<a href="/codepen/introducing-jsx" target="_blank">Try it on CodePen.</a>
 
 We split JSX over multiple lines for readability. While it isn't required, when doing this, we also recommend wrapping it in parentheses to avoid the pitfalls of [automatic semicolon insertion](http://stackoverflow.com/q/2846283).
 

content/docs/hello-world.md

@@ -170,12 +170,12 @@ exports.createPages = async ({graphql, boundActionCreators}) => {
   // Create Codepen redirects.
   // These use the Codepen prefill API to JIT-create Pens.
   // https://blog.codepen.io/documentation/api/prefill/
-  readdirSync('./examples').forEach(file => {
+  readdirSync('./codepen').forEach(file => {
     const slug = file.substring(0, file.length - 3); // Trim extension
-    const code = readFileSync(`./examples/${file}`, 'utf8');
+    const code = readFileSync(`./codepen/${file}`, 'utf8');
 
     createPage({
-      path: `/examples/${slug}`,
+      path: `/codepen/${slug}`,
       component: resolve('./src/templates/codepen-example.js'),
       context: {
         code,