Update action.yml

Author: ysk8hori

action.yml

@@ -1,4 +1,5 @@
 name: 'Delta TypeScript Graph'
+auther: 'ysk8hori'
 description: 'Visualizes changes in typescript-file dependencies.'
 inputs:
   access-token:
@@ -36,3 +37,6 @@ inputs:
 runs:
   using: 'node20'
   main: 'dist/index.js'
+branding:
+  icon: 'git-pull-request'
+  color: 'blue'