Event suggests

Closes #3487703

recipes/drupal_cms_events/composer.json

@@ -10,6 +10,11 @@
     "drupal/addtocal_augment": "^1.2@rc",
     "drupal/pathauto": "^1.13"
   },
+  "suggest": {
+    "drupal/events_calendar": "Display your events in an interactive calendar",
+    "drupal/events_recurring": "Update your event setup to manage recurring events",
+    "drupal/events_registration": "Add a flexible system for on-site event registration"
+  },
   "extra": {
     "patches": {
       "drupal/core": {