Update innersource-portal.md (#711)

Updated link to Bazaar backstage plugin

patterns/2-structured/innersource-portal.md

@@ -104,7 +104,7 @@ It is a good solution for a portal with a few dozen projects, though.
 
 ![Santander InnerSource Portal](../../assets/img/santander_portal.png "Banco Santander InnerSource Portal")
 
-* **Airbus** used the [SAP Portal](https://github.com/SAP/project-portal-for-innersource) as a Proof of Concept. It is now using the [Bazaar plugin](https://github.com/backstage/backstage/blob/master/plugins/bazaar/README.md) of [Backstage](https://backstage.io) as the latter became the official developer experience tool internally. It provides a convenient self-registering capability for all the divisions.
+* **Airbus** used the [SAP Portal](https://github.com/SAP/project-portal-for-innersource) as a Proof of Concept. It is now using the [Bazaar plugin](https://github.com/backstage/community-plugins/blob/main/workspaces/bazaar/plugins/bazaar/README.md) of [Backstage](https://backstage.io) as the latter became the official developer experience tool internally. It provides a convenient self-registering capability for all the divisions.
 * **Mercado Libre** use an instance of the [SAP portal](https://github.com/SAP/project-portal-for-innersource) to discover existing InnerSource projects within the organization.
 * **Mercedes-Benz** is [using](https://opensource.mercedes-benz.com/news/sponsor_innersource_commonsoss) the SAP reference implementation mentioned above for their InnerSource Portal.
 * **WellSky** has a simple _Confluence Wiki_ page were InnerSource and reusable projects are listed.