feat: handle create event

lib/models/github.dart

@@ -62,6 +62,7 @@ class GithubEventPayload {
   GithubEventRelease release;
   String action;
   String ref;
+  String refType;
   String before;
   String head;
   List<GithubEventCommit> commits;

lib/models/github.g.dart

@@ -70,6 +70,7 @@ GithubEventPayload _$GithubEventPayloadFromJson(Map<String, dynamic> json) {
         : GithubEventRelease.fromJson(json['release'] as Map<String, dynamic>)
     ..action = json['action'] as String
     ..ref = json['ref'] as String
+    ..refType = json['ref_type'] as String
     ..before = json['before'] as String
     ..head = json['head'] as String
     ..commits = (json['commits'] as List)
@@ -88,6 +89,7 @@ Map<String, dynamic> _$GithubEventPayloadToJson(GithubEventPayload instance) =>
       'release': instance.release,
       'action': instance.action,
       'ref': instance.ref,
+      'ref_type': instance.refType,
       'before': instance.before,
       'head': instance.head,
       'commits': instance.commits,

lib/widgets/event_item.dart

@@ -262,6 +262,14 @@ class EventItem extends StatelessWidget {
       case 'CommitCommentEvent':
       case 'ContentReferenceEvent':
       case 'CreateEvent':
+        return _buildItem(
+          context: context,
+          spans: <InlineSpan>[
+            TextSpan(
+                text: ' created ${e.payload.refType} ${e.payload.ref} at '),
+            _buildRepo(context),
+          ],
+        );
       case 'DeleteEvent':
       case 'DeploymentEvent':
       case 'DeploymentStatusEvent':