Add support for npm unpublish (#20688)

doc/packages/npm.en-us.md

@@ -67,6 +67,26 @@ npm publish
 
 You cannot publish a package if a package of the same name and version already exists. You must delete the existing package first.
 
+## Unpublish a package
+
+Delete a package by running the following command:
+
+```shell
+npm unpublish {package_name}[@{package_version}]
+```
+
+| Parameter         | Description |
+| ----------------- | ----------- |
+| `package_name`    | The package name. |
+| `package_version` | The package version. |
+
+For example:
+
+```shell
+npm unpublish @test/test_package
+npm unpublish @test/test_package@1.0.0
+```
+
 ## Install a package
 
 To install a package from the package registry, execute the following command:
@@ -113,6 +133,7 @@ The tag name must not be a valid version. All tag names which are parsable as a
 npm install
 npm ci
 npm publish
+npm unpublish
 npm dist-tag
 npm view
 ```