docs(config) : Change default value output.globalObject (#6025)

* docs(config) : Change default value output.globalObjecti

* Update src/content/configuration/output.mdx

Co-authored-by: Nitin Kumar <snitin315@gmail.com>

Author: jeffin143

src/content/configuration/output.mdx

@@ -656,10 +656,12 @@ T> In some contexts properties will use JavaScript code expressions instead of r
 
 ## output.globalObject
 
-`string = 'window'`
+`string = 'self'`
 
 When targeting a library, especially when `libraryTarget` is `'umd'`, this option indicates what global object will be used to mount the library. To make UMD build available on both browsers and Node.js, set `output.globalObject` option to `'this'`. Defaults to `self` for Web-like targets.
 
+The return value of your entry point will be assigned to the global object using the value of `output.library.name`. Depending on the value of the `target` option, the global object could change respectively, e.g., `self`, `global`, or `globalThis`.
+
 For example:
 
 **webpack.config.js**