chore(readme): remove unneeded dependency (#15)

Author: rryter

README.md

@@ -7,10 +7,10 @@ A Docusaurus v2 plugin that supports referencing code examples from public GitHu
 
 ## Install
 
-First, add the theme plugin to your dependencies as well as `@babel/plugin-transform-modules-commonjs`:
+First, add the theme plugin to your dependencies:
 
 ```sh
-npm install @saucelabs/theme-github-codeblock @babel/plugin-transform-modules-commonjs
+npm install @saucelabs/theme-github-codeblock
 ```
 
 ## Usage
@@ -25,23 +25,18 @@ Add the theme plugin to your list of themes in the `docusaurus.config.js`:
     // ...
 ```
 
-in your `babel.config.js` please add `@babel/plugin-transform-modules-commonjs` to the plugins, e.g.:
-
-```js
-module.exports = {
-  presets: [require.resolve('@docusaurus/core/lib/babel/preset')],
-  plugins: [
-    '@babel/plugin-transform-modules-commonjs'
-  ]
-};
-```
-
 In order to reference GitHub snippets in your markdown, create code blocks with a `reference` attached to the language meta string and put the link to your GitHub reference in the code block, e.g.:
 
     ```js reference
     https://github.com/saucelabs/docusaurus-theme-github-codeblock/blob/main/src/theme/ReferenceCodeBlock/index.tsx#L105-L108
     ```
 
+You can also set a custom title:
+
+    ```js reference title="Example"
+    https://github.com/saucelabs/docusaurus-theme-github-codeblock/blob/main/src/theme/ReferenceCodeBlock/index.tsx#L105-L108
+    ```
+
 The plugin will download the code and display the desired lines:
 
 ![Plugin Example](https://github.com/saucelabs/docusaurus-theme-github-codeblock/raw/main/.github/assets/example.png 'Plugin Example')