Update README.md

Author: heiskr

react/README.md

@@ -1,6 +1,6 @@
 # React (Experimental)
 
-The files in this directory are react components that can be then be used within markdown files by adding `interactive: true` frontmatter to a markdown file and then using the following syntax to embed the component:
+The files in this directory are React components. We can use these components within Markdown files by adding `interactive: true` frontmatter to a Markdown file. Then, using the following syntax to embed the component:
 
 ```
 <!--react-->
@@ -12,13 +12,12 @@ Theoretically React can be embedded anywhere on the site with a little bit of cr
 
 ## Defining new components
 
-
-Start by adding frontmatter `interactive:true` to any markdown file that you want to support react (this prevents react render time from slowing down any other page and keeping the impact on performance very low)
+Start by adding frontmatter `interactive:true` to any Markdown file that you want to support React. This prevents React render time from slowing down any other page and keeping the impact on performance very low.
 
 1. Create the component in the `./react` directory
 2. Register the component for webpack in `./javascripts/index.js` so the component works with client side rendering
 3. Register the component in `./lib/react-engine.js` so the component works with server side rendering
-4. If the component needs to be evaluated client side, see [this example](https://github.com/github/docs/blob/a48998c7890b71c8f58eda1fa31b50df348a0042/react/CodeEditor.js) for how to ensure the client side component rendered by the server gets [Hyrdated](https://reactjs.org/docs/react-dom.html#hydrate).
+4. If the component needs to be evaluated client side, see [this example](https://github.com/github/docs/blob/a48998c7890b71c8f58eda1fa31b50df348a0042/react/CodeEditor.js) for how to ensure the client side component rendered by the server gets [Hydrated](https://reactjs.org/docs/react-dom.html#hydrate).
 
 ## A Complete Example
 
@@ -31,10 +30,9 @@ The following example demonstrates the addition of an interactive CodeEditor on
   - [Enabling React components on a page](https://github.com/github/docs/blame/a48998c7890b71c8f58eda1fa31b50df348a0042/content/github/getting-started-with-github/access-permissions-on-github.md#L12)
   - [Adding the CodeEditor to a page](https://github.com/github/docs/blame/a48998c7890b71c8f58eda1fa31b50df348a0042/content/github/getting-started-with-github/access-permissions-on-github.md#L47)
 
-
 ## Gotchas
 
-- When requiring react components from npm you will often need to explicitly call require('component').default to make sure you get the component 
+- When requiring React components from npm you will often need to explicitly call `require('component').default` to make sure you get the component 
 - Some code examples you get from external React packages won't work out of the box, you often need to dig into the module and determine whether it's exporting to default or not which will in many cases cause you to need to `require('package').default`
 - `import` doesn't always work. Use `require` for a more consistent experience with React in this codebase.
 - If components require you to load CSS, you need to load that CSS in the `javascripts/index.js` file as shown [here](https://github.com/github/docs/blob/a48998c7890b71c8f58eda1fa31b50df348a0042/javascripts/index.js#L22)