chore: add links to metadata

Author: jame2O

plugins/MicrosoftDefender/v1/metadata.json

@@ -39,5 +39,17 @@
             "oauth2ClientId": "{{clientId}}",
             "oauth2Scope": "https://graph.microsoft.com/.default"
         }
-    }
+    },
+    "links": [
+        {
+            "category": "documentation",
+            "url": "https://github.com/squaredup/plugins/blob/main/plugins/MicrosoftDefender/v1/docs/README.md",
+            "label": "Help adding this plugin"
+        },
+        {
+            "category": "source",
+            "url": "https://github.com/squaredup/plugins/tree/main/plugins/MicrosoftDefender/v1",
+            "label": "Repository"
+        }
+    ]
 }