Add notification on tag

.drone.jsonnet

@@ -100,4 +100,15 @@ local gen_release() =
         for distro in distros]
   },
   gen_release(),
+  {kind: 'pipeline',
+   type: 'docker',
+   name: 'Notify Tagged release',
+   steps: [email_notification()],
+   when:
+     {  status: [ 'success', 'failure' ] ,
+        event: {include: ['tag']}, 
+     },
+    depends_on: 
+      ['Generate Release']
+  },
 ]