🍿 Minor Changes

• #2931 10b93b3 Thanks @HiDeoo! - Adds support for the title, frame, and meta fence attributes to code blocks.

  These new optional attributes add support for Expressive Code text & line markers. The following example renders a code block using a terminal frame with a title:

  ```js {% title="editor.exe" frame="terminal" %}
  console.log('Hello, world!');
  ```

  Any other text or line markers should be specified using the meta fence attribute. For example, the following code block renders a code block using the diff syntax combined with the js language syntax highlighting and the markers text highlighted:

  ```diff {% meta="lang=js 'markers'" %}
    function thisIsJavaScript() {
      // This entire block gets highlighted as JavaScript,
      // and we can still add diff markers to it!
  -   console.log('Old code to be removed')
  +   console.log('New and shiny code!')
    }
  ```

  To learn more about all the available options, check out the Expressive Code documentation.