pulumi-plugin: add page (#17200)

Co-authored-by: Machiavelli <145562237+MachiavelliII@users.noreply.github.com>

pages/common/pulumi-plugin.md

@@ -0,0 +1,25 @@
+# pulumi plugin
+
+> Manage language and resource provider plugins manually.
+> Other commands manage these automatically.
+> More information: <https://www.pulumi.com/docs/iac/cli/commands/pulumi_plugin/>.
+
+- List all plugins on the downloaded cache:
+
+`pulumi plugin ls`
+
+- List plugins being used by the current project in JSON format:
+
+`pulumi plugin {{[-p|--project]}} {{[-j|--json]}}`
+
+- Install a plugin kind (e.g resource) with the latest version or a specific one:
+
+`pulumi plugin install {{kind}} {{name}} {{version}}`
+
+- Remove a plugin kind (e.g. resource) and interactively pick a version or provide a specific one:
+
+`pulumi plugin rm {{kind}} {{name}} {{version}}`
+
+- Display help:
+
+`pulumi plugin {{[-h|--help]}}`