[DOC] document download URL for core plugins (#9606)

* document download URL for core plugins

Signed-off-by: Andriy Redko <[email protected]>

* Doc review

Signed-off-by: Fanit Kolchina <[email protected]>

* Update _install-and-configure/plugins.md

Signed-off-by: kolchfa-aws <[email protected]>

* Update _install-and-configure/plugins.md

Signed-off-by: kolchfa-aws <[email protected]>

---------

Signed-off-by: Andriy Redko <[email protected]>
Signed-off-by: Fanit Kolchina <[email protected]>
Signed-off-by: kolchfa-aws <[email protected]>
Co-authored-by: Fanit Kolchina <[email protected]>
Co-authored-by: kolchfa-aws <[email protected]>

Author: reta

_install-and-configure/plugins.md

@@ -303,6 +303,22 @@ _<sup>1</sup>Dashboard Notebooks was merged in to the Observability plugin with
 _<sup>2</sup>Performance Analyzer is not available on Windows._
 
 
+### Downloading plugin distributions for offline installation
+
+Each bundled plugin distribution can be downloaded and installed offline from a [zip file](#install-a-plugin-from-a-zip-file) using the official `plugins` repository URL template:
+
+```html
+https://artifacts.opensearch.org/releases/plugins/<plugin-name>/<version>/<plugin-name>-<version>.zip
+```
+
+The `<plugin-name>` correponds to the name of the bundled plugin (for example, `analysis-icu`). The `<version>` must match the version of the OpenSearch distribution (for example, `2.19.1`). 
+
+For example, use the following URL to download the `analysis-icu` bundled plugin distribution for OpenSearch version `2.19.1`:
+
+```
+https://artifacts.opensearch.org/releases/plugins/analysis-icu/2.19.1/analysis-icu-2.19.1.zip
+```
+
 ### Additional plugins
 
 There are many more plugins available in addition to those provided by the default distribution. These additional plugins have been built by OpenSearch developers or members of the OpenSearch community. For a list of additional plugins you can install, see [Additional plugins]({{site.url}}{{site.baseurl}}/install-and-configure/additional-plugins/index/).