disable_rsvp_form included in API responses

Author: lavaturtle

source/includes/authenticated_api/_events.md.erb

@@ -75,7 +75,8 @@ The authenticated REST API endpoints for events only deal with events created in
       "twitter_share_title": "Deliver the Petition to the Wizard",
       "web_share_api_share_message": "Check out this event in the Emerald City",
       "whatsapp_share_message": "I'm attending this event to deliver the petition. Join me!",
-      "share_by_email_body": "I'm attending this event and thought you might be interested. Will you join me?"
+      "share_by_email_body": "I'm attending this event and thought you might be interested. Will you join me?",
+      "disable_rsvp_form": false
     },
     ...
   ],
@@ -162,7 +163,8 @@ The response includes all the same data as the single-event endpoint for each ev
     "twitter_share_title": "Deliver the Petition to the Wizard",
     "web_share_api_share_message": "Check out this event in the Emerald City",
     "whatsapp_share_message": "I'm attending this event to deliver the petition. Join me!",
-    "share_by_email_body": "I'm attending this event and thought you might be interested. Will you join me?"
+    "share_by_email_body": "I'm attending this event and thought you might be interested. Will you join me?",
+    "disable_rsvp_form": false
   }
 }
 ```
@@ -293,7 +295,8 @@ the event `slug` is `chapter-meeting-1`.
     "twitter_share_title": null,
     "web_share_api_share_message": null,
     "whatsapp_share_message": null,
-    "share_by_email_body": null
+    "share_by_email_body": null,
+    "disable_rsvp_form": null
   }
 }
 ```