message: Small improvements in docs
diff: @@ -59,7 +59,7 @@ syncing to work correctly.
  #### For Next.js
  -For Next.js, you need to add the script the the `_document.js` file.
  +For Next.js, you need to add the `ColorModeScript` to the `_document.js` file.
  ```jsx live=false ln={16}
  // pages/_document.js
  @@ -91,7 +91,8 @@ export default App
  #### For Create React App
  -For Create React App, you need to add the script the the `index.js` file.
  +For Create React App, you need to add the `ColorModeScript` to the `index.js`
  +file.
  ```jsx live=false ln={10}
  // index.js
  @@ -112,7 +113,8 @@ ReactDOM.render(
  #### For Gatsby
  -For Next.js, you need to add the script the the `gatsby-ssr.js` file.
  +For Gatsby.js, you need to add the `ColorModeScript` to the `gatsby-ssr.js`
  +file.
  ```jsx live=false ln={9-12}
  // gatsby-ssr.js
  